25089231 has 8 divisors (see below), whose sum is σ = 33716224. Its totient is φ = 16594200.

The previous prime is 25089227. The next prime is 25089247. The reversal of 25089231 is 13298052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25089231 - 2² = 25089227 is a prime.

It is a super-2 number, since 2×25089231² = 1258939024342722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25089431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32545 + ... + 33306.

It is an arithmetic number, because the mean of its divisors is an integer number (4214528).

Almost surely, 2^25089231 is an apocalyptic number.

25089231 is a deficient number, since it is larger than the sum of its proper divisors (8626993).

25089231 is a wasteful number, since it uses less digits than its factorization.

25089231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65981.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 25089231 is about 5008.9151520065. The cubic root of 25089231 is about 292.7492447819.

The spelling of 25089231 in words is "twenty-five million, eighty-nine thousand, two hundred thirty-one".