56506600398 has 64 divisors (see below), whose sum is σ = 120109651200. Its totient is φ = 17691744000.

The previous prime is 56506600349. The next prime is 56506600519. The reversal of 56506600398 is 89300660565.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1862938 + ... + 1893026.

It is an arithmetic number, because the mean of its divisors is an integer number (1876713300).

Almost surely, 2^56506600398 is an apocalyptic number.

56506600398 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56506600398 is an abundant number, since it is smaller than the sum of its proper divisors (63603050802).

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

56506600398 is a wasteful number, since it uses less digits than its factorization.

56506600398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30417.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 56506600398 in words is "fifty-six billion, five hundred six million, six hundred thousand, three hundred ninety-eight".