564445019 has 2 divisors, whose sum is σ = 564445020. Its totient is φ = 564445018.

The previous prime is 564444983. The next prime is 564445081. The reversal of 564445019 is 910544465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 564445019 - 2⁸ = 564444763 is a prime.

It is a super-2 number, since 2×564445019² = 637196358947820722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (564445099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282222509 + 282222510.

It is an arithmetic number, because the mean of its divisors is an integer number (282222510).

Almost surely, 2^564445019 is an apocalyptic number.

564445019 is a deficient number, since it is larger than the sum of its proper divisors (1).

564445019 is an equidigital number, since it uses as much as digits as its factorization.

564445019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 564445019 is about 23758.0516667508. The cubic root of 564445019 is about 826.4321711929.

The spelling of 564445019 in words is "five hundred sixty-four million, four hundred forty-five thousand, nineteen".