25494025608 has 48 divisors (see below), whose sum is σ = 72048337920. Its totient is φ = 8128529376.

The previous prime is 25494025591. The next prime is 25494025633. The reversal of 25494025608 is 80652049452.

25494025608 is a `hidden beast` number, since 2 + 5 + 49 + 40 + 2 + 560 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7695816 + ... + 7699127.

It is an arithmetic number, because the mean of its divisors is an integer number (1501007040).

Almost surely, 2^25494025608 is an apocalyptic number.

It is an amenable number.

25494025608 is an abundant number, since it is smaller than the sum of its proper divisors (46554312312).

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

25494025608 is a wasteful number, since it uses less digits than its factorization.

25494025608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15394978 (or 15394971 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 25494025608 in words is "twenty-five billion, four hundred ninety-four million, twenty-five thousand, six hundred eight".