564299909 has 2 divisors, whose sum is σ = 564299910. Its totient is φ = 564299908.

The previous prime is 564299903. The next prime is 564299927. The reversal of 564299909 is 909992465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382319809 + 181980100 = 19553^2 + 13490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564299909 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564299903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282149954 + 282149955.

It is an arithmetic number, because the mean of its divisors is an integer number (282149955).

Almost surely, 2^564299909 is an apocalyptic number.

It is an amenable number.

564299909 is a deficient number, since it is larger than the sum of its proper divisors (1).

564299909 is an equidigital number, since it uses as much as digits as its factorization.

564299909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The square root of 564299909 is about 23754.9975584086. The cubic root of 564299909 is about 826.3613441878.

The spelling of 564299909 in words is "five hundred sixty-four million, two hundred ninety-nine thousand, nine hundred nine".