56943788556 has 12 divisors (see below), whose sum is σ = 132868839992. Its totient is φ = 18981262848.

The previous prime is 56943788549. The next prime is 56943788563. The reversal of 56943788556 is 65588734965.

It is an interprime number because it is at equal distance from previous prime (56943788549) and next prime (56943788563).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×56943788556² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2372657845 + ... + 2372657868.

Almost surely, 2^56943788556 is an apocalyptic number.

It is an amenable number.

56943788556 is an abundant number, since it is smaller than the sum of its proper divisors (75925051436).

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

56943788556 is a wasteful number, since it uses less digits than its factorization.

56943788556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745315720 (or 4745315718 counting only the distinct ones).

The product of its digits is 217728000, while the sum is 66.

The spelling of 56943788556 in words is "fifty-six billion, nine hundred forty-three million, seven hundred eighty-eight thousand, five hundred fifty-six".