564995509 has 8 divisors (see below), whose sum is σ = 611140320. Its totient is φ = 519234096.

The previous prime is 564995489. The next prime is 564995537. The reversal of 564995509 is 905599465.

564995509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 564995509 - 2⁵ = 564995477 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 (564995549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92779 + ... + 98680.

It is an arithmetic number, because the mean of its divisors is an integer number (76392540).

Almost surely, 2^564995509 is an apocalyptic number.

It is an amenable number.

564995509 is a deficient number, since it is larger than the sum of its proper divisors (46144811).

564995509 is a wasteful number, since it uses less digits than its factorization.

564995509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191699.

The product of its (nonzero) digits is 2187000, while the sum is 52.

The square root of 564995509 is about 23769.6341789267. The cubic root of 564995509 is about 826.7007505422.

It can be divided in two parts, 564995 and 509, that added together give a square (565504 = 752²).

The spelling of 564995509 in words is "five hundred sixty-four million, nine hundred ninety-five thousand, five hundred nine".