56656505535 has 24 divisors (see below), whose sum is σ = 105450476976. Its totient is φ = 25900116480.

The previous prime is 56656505513. The next prime is 56656505539. The reversal of 56656505535 is 53550565665.

It is not a de Polignac number, because 56656505535 - 2⁶ = 56656505471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56656505539) by changing a digit.

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, 38541106 + ... + 38542575.

It is an arithmetic number, because the mean of its divisors is an integer number (4393769874).

Almost surely, 2^56656505535 is an apocalyptic number.

56656505535 is a deficient number, since it is larger than the sum of its proper divisors (48793971441).

56656505535 is a wasteful number, since it uses less digits than its factorization.

56656505535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77083703 (or 77083696 counting only the distinct ones).

The product of its (nonzero) digits is 10125000, while the sum is 51.

The spelling of 56656505535 in words is "fifty-six billion, six hundred fifty-six million, five hundred five thousand, five hundred thirty-five".