56807437555 has 24 divisors (see below), whose sum is σ = 75093804576. Its totient is φ = 41223895680.

The previous prime is 56807437529. The next prime is 56807437567. The reversal of 56807437555 is 55573470865.

It is not a de Polignac number, because 56807437555 - 2⁵ = 56807437523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56807437496 and 56807437505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173754 + ... + 379216.

It is an arithmetic number, because the mean of its divisors is an integer number (3128908524).

Almost surely, 2^56807437555 is an apocalyptic number.

56807437555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56807437555 is a deficient number, since it is larger than the sum of its proper divisors (18286367021).

56807437555 is a wasteful number, since it uses less digits than its factorization.

56807437555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205947 (or 205936 counting only the distinct ones).

The product of its (nonzero) digits is 17640000, while the sum is 55.

The spelling of 56807437555 in words is "fifty-six billion, eight hundred seven million, four hundred thirty-seven thousand, five hundred fifty-five".