56475401983 has 32 divisors (see below), whose sum is σ = 76608967680. Its totient is φ = 40202818560.

The previous prime is 56475401953. The next prime is 56475401993. The reversal of 56475401983 is 38910457465.

It is a cyclic number.

It is not a de Polignac number, because 56475401983 - 2⁵ = 56475401951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56475401983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56475401933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193723 + ... + 387916.

It is an arithmetic number, because the mean of its divisors is an integer number (2394030240).

Almost surely, 2^56475401983 is an apocalyptic number.

56475401983 is a deficient number, since it is larger than the sum of its proper divisors (20133565697).

56475401983 is a wasteful number, since it uses less digits than its factorization.

56475401983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581767.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 56475401983 in words is "fifty-six billion, four hundred seventy-five million, four hundred one thousand, nine hundred eighty-three".