564563257 has 2 divisors, whose sum is σ = 564563258. Its totient is φ = 564563256.

The previous prime is 564563249. The next prime is 564563269. The reversal of 564563257 is 752365465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481188096 + 83375161 = 21936^2 + 9131^2 .

It is a cyclic number.

It is not a de Polignac number, because 564563257 - 2³ = 564563249 is a prime.

It is not a weakly prime, because it can be changed into another prime (564560257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282281628 + 282281629.

It is an arithmetic number, because the mean of its divisors is an integer number (282281629).

Almost surely, 2^564563257 is an apocalyptic number.

It is an amenable number.

564563257 is a deficient number, since it is larger than the sum of its proper divisors (1).

564563257 is an equidigital number, since it uses as much as digits as its factorization.

564563257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756000, while the sum is 43.

The square root of 564563257 is about 23760.5399138993. The cubic root of 564563257 is about 826.4898732197.

The spelling of 564563257 in words is "five hundred sixty-four million, five hundred sixty-three thousand, two hundred fifty-seven".