55 in words
55
fifty-five
55 is written fifty-five.
Ways to write it
- As an ordinal
- fifty-fifth
- Roman numeral
- LV
- Expanded form
- 50 + 5
Place value
| Place | Digit | Value |
|---|---|---|
| tens | 5 | 50 |
| ones | 5 | 5 |
Number facts
Quick check
What number comes just after 55?
Show the answer
56
Is 55 even or odd?
Show the answer
Odd
What is 55 + 10?
Show the answer
65
Practise with a game
Place Value Quest
Ones, tens, hundreds and thousands.
Times Tables Challenge
Practise any times table from 2× to 12×.Frequently asked questions
How do you write 55 in words?
55 is written "fifty-five".
Is 55 a prime number?
No. 55 is a composite number, because it has more than two factors.
What are the factors of 55?
The factors of 55 are 1, 5, 11 and 55.
How do you write 55 in Roman numerals?
55 in Roman numerals is LV.