564560641 has 2 divisors, whose sum is σ = 564560642. Its totient is φ = 564560640.

The previous prime is 564560627. The next prime is 564560651. The reversal of 564560641 is 146065465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345402225 + 219158416 = 18585^2 + 14804^2 .

It is a cyclic number.

It is not a de Polignac number, because 564560641 - 2²³ = 556172033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 564560641.

It is not a weakly prime, because it can be changed into another prime (564560621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282280320 + 282280321.

It is an arithmetic number, because the mean of its divisors is an integer number (282280321).

Almost surely, 2^564560641 is an apocalyptic number.

It is an amenable number.

564560641 is a deficient number, since it is larger than the sum of its proper divisors (1).

564560641 is an equidigital number, since it uses as much as digits as its factorization.

564560641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 564560641 is about 23760.4848645814. The cubic root of 564560641 is about 826.4885966572.

The spelling of 564560641 in words is "five hundred sixty-four million, five hundred sixty thousand, six hundred forty-one".