25290695872 has 42 divisors (see below), whose sum is σ = 54343686588. Its totient is φ = 11672623872.

The previous prime is 25290695861. The next prime is 25290695887. The reversal of 25290695872 is 27859609252.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1158318 + ... + 1179949.

Almost surely, 2^25290695872 is an apocalyptic number.

It is an amenable number.

25290695872 is an abundant number, since it is smaller than the sum of its proper divisors (29052990716).

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

25290695872 is a wasteful number, since it uses less digits than its factorization.

25290695872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338305 (or 2338282 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 25290695872 in words is "twenty-five billion, two hundred ninety million, six hundred ninety-five thousand, eight hundred seventy-two".