56105632553520 has 160 divisors (see below), whose sum is σ = 189941552962560. Its totient is φ = 13586849003520.

The previous prime is 56105632553491. The next prime is 56105632553557. The reversal of 56105632553520 is 2535523650165.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 56105632553520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8866840 + ... + 13814199.

It is an arithmetic number, because the mean of its divisors is an integer number (1187134706016).

Almost surely, 2^{56105632553520} is an apocalyptic number.

It is an amenable number.

56105632553520 is an abundant number, since it is smaller than the sum of its proper divisors (133835920409040).

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

56105632553520 is a wasteful number, since it uses less digits than its factorization.

56105632553520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22682003 (or 22681997 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 48.

The spelling of 56105632553520 in words is "fifty-six trillion, one hundred five billion, six hundred thirty-two million, five hundred fifty-three thousand, five hundred twenty".