25558953896 has 48 divisors (see below), whose sum is σ = 56268302400. Its totient is φ = 10851447264.

The previous prime is 25558953887. The next prime is 25558953907. The reversal of 25558953896 is 69835985552.

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, 262736 + ... + 346623.

It is an arithmetic number, because the mean of its divisors is an integer number (1172256300).

Almost surely, 2^25558953896 is an apocalyptic number.

It is an amenable number.

25558953896 is an abundant number, since it is smaller than the sum of its proper divisors (30709348504).

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

25558953896 is a wasteful number, since it uses less digits than its factorization.

25558953896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609486 (or 609475 counting only the distinct ones).

The product of its digits is 116640000, while the sum is 65.

The spelling of 25558953896 in words is "twenty-five billion, five hundred fifty-eight million, nine hundred fifty-three thousand, eight hundred ninety-six".