56711917583 has 2 divisors, whose sum is σ = 56711917584. Its totient is φ = 56711917582.

The previous prime is 56711917513. The next prime is 56711917657. The reversal of 56711917583 is 38571911765.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56711917583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56711917513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28355958791 + 28355958792.

It is an arithmetic number, because the mean of its divisors is an integer number (28355958792).

Almost surely, 2^56711917583 is an apocalyptic number.

56711917583 is a deficient number, since it is larger than the sum of its proper divisors (1).

56711917583 is an equidigital number, since it uses as much as digits as its factorization.

56711917583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 53.

The spelling of 56711917583 in words is "fifty-six billion, seven hundred eleven million, nine hundred seventeen thousand, five hundred eighty-three".