56679993 has 12 divisors (see below), whose sum is σ = 84903728. Its totient is φ = 37786500.

The previous prime is 56679941. The next prime is 56680003. The reversal of 56679993 is 39997665.

56679993 is a `hidden beast` number, since 566 + 79 + 9 + 9 + 3 = 666.

It is not a de Polignac number, because 56679993 - 2⁶ = 56679929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56679193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116383 + ... + 116868.

Almost surely, 2^56679993 is an apocalyptic number.

It is an amenable number.

56679993 is a deficient number, since it is larger than the sum of its proper divisors (28223735).

56679993 is an equidigital number, since it uses as much as digits as its factorization.

56679993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233266 (or 233254 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 54.

The square root of 56679993 is about 7528.6116249943. The cubic root of 56679993 is about 384.1285580299.

The spelling of 56679993 in words is "fifty-six million, six hundred seventy-nine thousand, nine hundred ninety-three".