564859009 has 24 divisors (see below), whose sum is σ = 683623584. Its totient is φ = 462384000.

The previous prime is 564858997. The next prime is 564859049. The reversal of 564859009 is 900958465.

It is not a de Polignac number, because 564859009 - 2¹¹ = 564856961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564859009.

It is not an unprimeable number, because it can be changed into a prime (564859049) 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, 72514 + ... + 79924.

It is an arithmetic number, because the mean of its divisors is an integer number (28484316).

Almost surely, 2^564859009 is an apocalyptic number.

It is an amenable number.

564859009 is a deficient number, since it is larger than the sum of its proper divisors (118764575).

564859009 is a wasteful number, since it uses less digits than its factorization.

564859009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7489 (or 7476 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 564859009 is about 23766.7626949907. The cubic root of 564859009 is about 826.6341696346.

The spelling of 564859009 in words is "five hundred sixty-four million, eight hundred fifty-nine thousand, nine".