How to write 25 in Roman numerals
Roman numerals are built place by place, from the largest value to the smallest. For 25 the places are 20 (tens), 5 (ones).
- Write 20 as
XX. - Write 5 as
V.
Joined together, XX + V gives XXV.
25 digit by digit
| Place | Value | Numeral | Rule used |
|---|---|---|---|
| tens | 20 | XX | the symbol repeated twice |
| ones | 5 | V | the five symbol on its own |
Check XXV by reading it back
Reading XXV from left to right and adding the pieces: XX = 20, V = 5. Together that is 20 + 5 = 25, so XXV and 25 match.
Mistakes to avoid with XXV
- Never repeat a symbol more than three times in a row. When a fourth would be needed, the subtractive form takes over.
- Only I, X and C may be placed before a larger symbol to subtract, so XXV never contains forms such as VX or LC.
- Read XXV as one number, not letter by letter: add the values left to right, except where a smaller symbol sits before a larger one.
Facts about the number 25
- 25 is an odd number and composite, with prime factors 52.
- In binary 25 is
11001and in hexadecimal it is19. - Written out, 25 is "twenty-five".
- The digits of 25 add up to 7.
- 25 is a perfect square (5 x 5).
Where you will see 25 in Roman numerals
Silver jubilees celebrate twenty five years using XXV for the number 25 on commemorative items. Film copyrights also contained it recently. Organizations stamp this numeral on medals and plaques because the traditional lettering elevates the milestone, making the anniversary feel more significant than a plain printed number.
Numbers near 25
FAQ
What is 25 in Roman numerals?
25 is written XXV in Roman numerals. It is built from XX (20), V (5).
How do you write 25 in lowercase Roman numerals?
Lowercase Roman numerals use the same rules, so 25 is xxv. Lowercase is common for page numbers in a book's preface and for outline levels.
How do I convert any number to Roman numerals?
Split the number into thousands, hundreds, tens and ones, write each part with the symbols I, V, X, L, C, D and M, then join them from largest to smallest. Or paste it into the Roman numeral converter, which also converts back.
More roman numerals
- 24 (XXIV): previous page
- 26 (XXVI): next page
- Roman numerals chart: the full list