56655100511 has 4 divisors (see below), whose sum is σ = 57972661032. Its totient is φ = 55337539992.

The previous prime is 56655100493. The next prime is 56655100517. The reversal of 56655100511 is 11500155665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56655100511 is a prime.

It is a super-2 number, since 2×56655100511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56655100517) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 658780196 + ... + 658780281.

It is an arithmetic number, because the mean of its divisors is an integer number (14493165258).

Almost surely, 2^56655100511 is an apocalyptic number.

56655100511 is a deficient number, since it is larger than the sum of its proper divisors (1317560521).

56655100511 is a wasteful number, since it uses less digits than its factorization.

56655100511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317560520.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 56655100511 in words is "fifty-six billion, six hundred fifty-five million, one hundred thousand, five hundred eleven".