25497133356 has 12 divisors (see below), whose sum is σ = 59493311192. Its totient is φ = 8499044448.

The previous prime is 25497133349. The next prime is 25497133397. The reversal of 25497133356 is 65333179452.

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, 1062380545 + ... + 1062380568.

Almost surely, 2^25497133356 is an apocalyptic number.

It is an amenable number.

25497133356 is an abundant number, since it is smaller than the sum of its proper divisors (33996177836).

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

25497133356 is a wasteful number, since it uses less digits than its factorization.

25497133356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124761120 (or 2124761118 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 48.

The spelling of 25497133356 in words is "twenty-five billion, four hundred ninety-seven million, one hundred thirty-three thousand, three hundred fifty-six".