25240904 has 32 divisors (see below), whose sum is σ = 52731000. Its totient is φ = 11246592.

The previous prime is 25240877. The next prime is 25240939. The reversal of 25240904 is 40904252.

It can be written as a sum of positive squares in 4 ways, for example, as 20268004 + 4972900 = 4502^2 + 2230^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1169 + ... + 7200.

Almost surely, 2^25240904 is an apocalyptic number.

It is an amenable number.

25240904 is an abundant number, since it is smaller than the sum of its proper divisors (27490096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25240904 is a wasteful number, since it uses less digits than its factorization.

25240904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417 (or 8413 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 25240904 is about 5024.0326432061. The cubic root of 25240904 is about 293.3379831678.

The spelling of 25240904 in words is "twenty-five million, two hundred forty thousand, nine hundred four".