56564533 has 4 divisors (see below), whose sum is σ = 56609248. Its totient is φ = 56519820.

The previous prime is 56564503. The next prime is 56564551. The reversal of 56564533 is 33546565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56564533 - 2⁹ = 56564021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56564492 and 56564501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56564503) 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, 20403 + ... + 23008.

It is an arithmetic number, because the mean of its divisors is an integer number (14152312).

Almost surely, 2^56564533 is an apocalyptic number.

It is an amenable number.

56564533 is a deficient number, since it is larger than the sum of its proper divisors (44715).

56564533 is a wasteful number, since it uses less digits than its factorization.

56564533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44714.

The product of its digits is 162000, while the sum is 37.

The square root of 56564533 is about 7520.9396354445. The cubic root of 56564533 is about 383.8675509826.

The spelling of 56564533 in words is "fifty-six million, five hundred sixty-four thousand, five hundred thirty-three".