25,421 in words
25,421
twenty-five thousand four hundred and twenty-one
25,421 is written twenty-five thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- twenty-five thousand four hundred and twenty-first
- Expanded form
- 20,000 + 5,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 5 | 5,000 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 11, 2,311 and 25,421 (4 factors)
- First 10 multiples
- 25,421, 50,842, 76,263, 101,684, 127,105, 152,526, 177,947, 203,368, 228,789, 254,210
- Square
- 25,421 × 25,421 = 646,227,241
- Square root
- ≈ 159.44
- Sum of the digits
- 2 + 5 + 4 + 2 + 1 = 14
- Rounded to the nearest 10
- 25,420
- Rounded to the nearest 100
- 25,400
- Rounded to the nearest 1000
- 25,000
- Number before
- 25,420
- Number after
- 25,422
- In binary
110001101001101
Quick check
What number comes just after 25,421?
Show the answer
25,422
Is 25,421 even or odd?
Show the answer
Odd
What is 25,421 + 10?
Show the answer
25,431
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 25,421 in words?
25,421 is written "twenty-five thousand four hundred and twenty-one".
Is 25,421 a prime number?
No. 25,421 is a composite number, because it has more than two factors.
What are the factors of 25,421?
The factors of 25,421 are 1, 11, 2,311 and 25,421.