25713496856 has 8 divisors (see below), whose sum is σ = 48212806620. Its totient is φ = 12856748424.

The previous prime is 25713496847. The next prime is 25713496877. The reversal of 25713496856 is 65869431752.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×25713496856² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607093546 + ... + 1607093561.

Almost surely, 2^25713496856 is an apocalyptic number.

It is an amenable number.

25713496856 is a deficient number, since it is larger than the sum of its proper divisors (22499309764).

25713496856 is a wasteful number, since it uses less digits than its factorization.

25713496856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214187113 (or 3214187109 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 56.

The spelling of 25713496856 in words is "twenty-five billion, seven hundred thirteen million, four hundred ninety-six thousand, eight hundred fifty-six".