564995489 has 2 divisors, whose sum is σ = 564995490. Its totient is φ = 564995488.

The previous prime is 564995477. The next prime is 564995537. The reversal of 564995489 is 984599465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 482549089 + 82446400 = 21967^2 + 9080^2 .

It is a cyclic number.

It is not a de Polignac number, because 564995489 - 2¹² = 564991393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (564995689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282497744 + 282497745.

It is an arithmetic number, because the mean of its divisors is an integer number (282497745).

Almost surely, 2^564995489 is an apocalyptic number.

It is an amenable number.

564995489 is a deficient number, since it is larger than the sum of its proper divisors (1).

564995489 is an equidigital number, since it uses as much as digits as its factorization.

564995489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13996800, while the sum is 59.

The square root of 564995489 is about 23769.6337582219. The cubic root of 564995489 is about 826.7007407875.

The spelling of 564995489 in words is "five hundred sixty-four million, nine hundred ninety-five thousand, four hundred eighty-nine".