56565402398 has 32 divisors (see below), whose sum is σ = 90578131200. Its totient is φ = 26415170496.

The previous prime is 56565402367. The next prime is 56565402409. The reversal of 56565402398 is 89320456565.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10313765 + ... + 10319247.

It is an arithmetic number, because the mean of its divisors is an integer number (2830566600).

Almost surely, 2^56565402398 is an apocalyptic number.

56565402398 is a deficient number, since it is larger than the sum of its proper divisors (34012728802).

56565402398 is a wasteful number, since it uses less digits than its factorization.

56565402398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9296.

The product of its (nonzero) digits is 7776000, while the sum is 53.

The spelling of 56565402398 in words is "fifty-six billion, five hundred sixty-five million, four hundred two thousand, three hundred ninety-eight".