56597515198 has 16 divisors (see below), whose sum is σ = 98614875744. Its totient is φ = 23858436960.

The previous prime is 56597515187. The next prime is 56597515199. The reversal of 56597515198 is 89151579565.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56597515199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33135865 + ... + 33137572.

It is an arithmetic number, because the mean of its divisors is an integer number (6163429734).

Almost surely, 2^56597515198 is an apocalyptic number.

56597515198 is a deficient number, since it is larger than the sum of its proper divisors (42017360546).

56597515198 is a wasteful number, since it uses less digits than its factorization.

56597515198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66273507.

The product of its digits is 17010000, while the sum is 61.

The spelling of 56597515198 in words is "fifty-six billion, five hundred ninety-seven million, five hundred fifteen thousand, one hundred ninety-eight".