56613823 has 4 divisors (see below), whose sum is σ = 64701520. Its totient is φ = 48526128.

The previous prime is 56613769. The next prime is 56613827. The reversal of 56613823 is 32831665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32831665 = 5 ⋅6566333.

It is not a de Polignac number, because 56613823 - 2²⁵ = 23059391 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 (56613827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4043838 + ... + 4043851.

It is an arithmetic number, because the mean of its divisors is an integer number (16175380).

Almost surely, 2^56613823 is an apocalyptic number.

56613823 is a deficient number, since it is larger than the sum of its proper divisors (8087697).

56613823 is an equidigital number, since it uses as much as digits as its factorization.

56613823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8087696.

The product of its digits is 25920, while the sum is 34.

The square root of 56613823 is about 7524.2157730889. The cubic root of 56613823 is about 383.9790185838.

The spelling of 56613823 in words is "fifty-six million, six hundred thirteen thousand, eight hundred twenty-three".