25407865604 has 48 divisors (see below), whose sum is σ = 49089680640. Its totient is φ = 11410248960.

The previous prime is 25407865603. The next prime is 25407865619. The reversal of 25407865604 is 40656870452.

It is not an unprimeable number, because it can be changed into a prime (25407865603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8954474 + ... + 8957310.

It is an arithmetic number, because the mean of its divisors is an integer number (1022701680).

Almost surely, 2^25407865604 is an apocalyptic number.

It is an amenable number.

25407865604 is a deficient number, since it is larger than the sum of its proper divisors (23681815036).

25407865604 is a wasteful number, since it uses less digits than its factorization.

25407865604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5228 (or 5226 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 25407865604 in words is "twenty-five billion, four hundred seven million, eight hundred sixty-five thousand, six hundred four".