25625004 has 12 divisors (see below), whose sum is σ = 59791704. Its totient is φ = 8541664.

The previous prime is 25624961. The next prime is 25625029. The reversal of 25625004 is 40052652.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067697 + ... + 1067720.

It is an arithmetic number, because the mean of its divisors is an integer number (4982642).

Almost surely, 2^25625004 is an apocalyptic number.

It is an amenable number.

25625004 is an abundant number, since it is smaller than the sum of its proper divisors (34166700).

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

25625004 is a wasteful number, since it uses less digits than its factorization.

25625004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135424 (or 2135422 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25625004 is about 5062.1145779210. The cubic root of 25625004 is about 294.8184423387.

Adding to 25625004 its reverse (40052652), we get a palindrome (65677656).

The spelling of 25625004 in words is "twenty-five million, six hundred twenty-five thousand, four".