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25 in words

25

twenty-five

25 is written twenty-five.

Ways to write it

As an ordinal: twenty-fifth
Roman numeral: XXV
Expanded form: 20 + 5

Place value

Place	Digit	Value
tens	2	20
ones	5	5

Number facts

Even or odd: Odd
Prime or composite: Composite
Factors: 1, 5 and 25 (3 factors)
First 10 multiples: 25, 50, 75, 100, 125, 150, 175, 200, 225, 250
Square: 25 × 25 = 625
Square root: 5
Sum of the digits: 2 + 5 = 7
Rounded to the nearest 10: 30
Number before: 24
Number after: 26
In binary: 11001

Quick check

What number comes just after 25?
Show the answer
26
Is 25 even or odd?
Show the answer
Odd
What is 25 + 10?
Show the answer
35

Practise with a game

Count with Me

Count pictures up to 5, 10 or 20 and compare groups.

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 25 in words?

25 is written "twenty-five".

Is 25 a prime number?

No. 25 is a composite number, because it has more than two factors.

What are the factors of 25?

The factors of 25 are 1, 5 and 25.

How do you write 25 in Roman numerals?

25 in Roman numerals is XXV.