564426617 has 2 divisors, whose sum is σ = 564426618. Its totient is φ = 564426616.

The previous prime is 564426613. The next prime is 564426671. The reversal of 564426617 is 716624465.

It is a happy number.

Together with next prime (564426671) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 408201616 + 156225001 = 20204^2 + 12499^2 .

It is a cyclic number.

It is not a de Polignac number, because 564426617 - 2² = 564426613 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (564426613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282213308 + 282213309.

It is an arithmetic number, because the mean of its divisors is an integer number (282213309).

Almost surely, 2^564426617 is an apocalyptic number.

It is an amenable number.

564426617 is a deficient number, since it is larger than the sum of its proper divisors (1).

564426617 is an equidigital number, since it uses as much as digits as its factorization.

564426617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 564426617 is about 23757.6643843624. The cubic root of 564426617 is about 826.4231899992.

The spelling of 564426617 in words is "five hundred sixty-four million, four hundred twenty-six thousand, six hundred seventeen".