56659823 has 24 divisors (see below), whose sum is σ = 65659440. Its totient is φ = 48787200.

The previous prime is 56659781. The next prime is 56659829. The reversal of 56659823 is 32895665.

It is a happy number.

It is not a de Polignac number, because 56659823 - 2²⁴ = 39882607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56659829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234983 + ... + 235223.

It is an arithmetic number, because the mean of its divisors is an integer number (2735810).

Almost surely, 2^56659823 is an apocalyptic number.

56659823 is a deficient number, since it is larger than the sum of its proper divisors (8999617).

56659823 is a wasteful number, since it uses less digits than its factorization.

56659823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 348 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 56659823 is about 7527.2719493851. The cubic root of 56659823 is about 384.0829876159.

The spelling of 56659823 in words is "fifty-six million, six hundred fifty-nine thousand, eight hundred twenty-three".