56997711 has 6 divisors (see below), whose sum is σ = 82330040. Its totient is φ = 37998468.

The previous prime is 56997697. The next prime is 56997713. The reversal of 56997711 is 11779965.

56997711 is a `hidden beast` number, since 569 + 9 + 77 + 11 = 666.

It is not a de Polignac number, because 56997711 - 2⁵ = 56997679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56997713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3166531 + ... + 3166548.

Almost surely, 2^56997711 is an apocalyptic number.

56997711 is a deficient number, since it is larger than the sum of its proper divisors (25332329).

56997711 is a wasteful number, since it uses less digits than its factorization.

56997711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333085 (or 6333082 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 56997711 is about 7549.6828410205. The cubic root of 56997711 is about 384.8449614686.

The spelling of 56997711 in words is "fifty-six million, nine hundred ninety-seven thousand, seven hundred eleven".