25204428 has 36 divisors (see below), whose sum is σ = 63900928. Its totient is φ = 8376480.

The previous prime is 25204411. The next prime is 25204429. The reversal of 25204428 is 82440252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

25204428 is a modest number, since divided by 4428 gives 252 as remainder.

It is not an unprimeable number, because it can be changed into a prime (25204429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14325 + ... + 15987.

Almost surely, 2^25204428 is an apocalyptic number.

It is an amenable number.

25204428 is an abundant number, since it is smaller than the sum of its proper divisors (38696500).

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

25204428 is a wasteful number, since it uses less digits than its factorization.

25204428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 25204428 is about 5020.4011791888. The cubic root of 25204428 is about 293.1966127087.

The spelling of 25204428 in words is "twenty-five million, two hundred four thousand, four hundred twenty-eight".