564625657 has 2 divisors, whose sum is σ = 564625658. Its totient is φ = 564625656.

The previous prime is 564625627. The next prime is 564625697. The reversal of 564625657 is 756526465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333099001 + 231526656 = 18251^2 + 15216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564625657 is a prime.

It is not a weakly prime, because it can be changed into another prime (564625627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282312828 + 282312829.

It is an arithmetic number, because the mean of its divisors is an integer number (282312829).

Almost surely, 2^564625657 is an apocalyptic number.

It is an amenable number.

564625657 is a deficient number, since it is larger than the sum of its proper divisors (1).

564625657 is an equidigital number, since it uses as much as digits as its factorization.

564625657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512000, while the sum is 46.

The square root of 564625657 is about 23761.8529790924. The cubic root of 564625657 is about 826.5203221655.

The spelling of 564625657 in words is "five hundred sixty-four million, six hundred twenty-five thousand, six hundred fifty-seven".