56565511500 has 48 divisors (see below), whose sum is σ = 164718773856. Its totient is φ = 15084136000.

The previous prime is 56565511463. The next prime is 56565511511. The reversal of 56565511500 is 511556565.

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 15 ways as a sum of consecutive naturals, for example, 18853671 + ... + 18856670.

It is an arithmetic number, because the mean of its divisors is an integer number (3431641122).

Almost surely, 2^56565511500 is an apocalyptic number.

56565511500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56565511500 is an abundant number, since it is smaller than the sum of its proper divisors (108153262356).

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

56565511500 is a wasteful number, since it uses less digits than its factorization.

56565511500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37710363 (or 37710351 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 56565511500 in words is "fifty-six billion, five hundred sixty-five million, five hundred eleven thousand, five hundred".