56511065554 has 8 divisors (see below), whose sum is σ = 84847254768. Its totient is φ = 28228647300.

The previous prime is 56511065551. The next prime is 56511065581. The reversal of 56511065554 is 45556011565.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 56511065554.

It is not an unprimeable number, because it can be changed into a prime (56511065551) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13440112 + ... + 13444315.

It is an arithmetic number, because the mean of its divisors is an integer number (10605906846).

Almost surely, 2^56511065554 is an apocalyptic number.

56511065554 is a deficient number, since it is larger than the sum of its proper divisors (28336189214).

56511065554 is a wasteful number, since it uses less digits than its factorization.

56511065554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26885480.

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 56511065554 in words is "fifty-six billion, five hundred eleven million, sixty-five thousand, five hundred fifty-four".