564205823 has 4 divisors (see below), whose sum is σ = 566547168. Its totient is φ = 561864480.

The previous prime is 564205819. The next prime is 564205871. The reversal of 564205823 is 328502465.

564205823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 564205823 - 2² = 564205819 is a prime.

It is a super-3 number, since 3×564205823³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564205883) 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, 1170311 + ... + 1170792.

It is an arithmetic number, because the mean of its divisors is an integer number (141636792).

Almost surely, 2^564205823 is an apocalyptic number.

564205823 is a deficient number, since it is larger than the sum of its proper divisors (2341345).

564205823 is a wasteful number, since it uses less digits than its factorization.

564205823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341344.

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 564205823 is about 23753.0171346715. The cubic root of 564205823 is about 826.3154150914.

The spelling of 564205823 in words is "five hundred sixty-four million, two hundred five thousand, eight hundred twenty-three".