56577423123 has 24 divisors (see below), whose sum is σ = 88209881760. Its totient is φ = 34737534720.

The previous prime is 56577423061. The next prime is 56577423143. The reversal of 56577423123 is 32132477565.

56577423123 is a `hidden beast` number, since 5 + 6 + 577 + 42 + 31 + 2 + 3 = 666.

It is not a de Polignac number, because 56577423123 - 2¹² = 56577419027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56577423143) 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 23 ways as a sum of consecutive naturals, for example, 499398 + ... + 602123.

It is an arithmetic number, because the mean of its divisors is an integer number (3675411740).

Almost surely, 2^56577423123 is an apocalyptic number.

56577423123 is a deficient number, since it is larger than the sum of its proper divisors (31632458637).

56577423123 is a wasteful number, since it uses less digits than its factorization.

56577423123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101979 (or 1101976 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 45.

The spelling of 56577423123 in words is "fifty-six billion, five hundred seventy-seven million, four hundred twenty-three thousand, one hundred twenty-three".