564448081 has 2 divisors, whose sum is σ = 564448082. Its totient is φ = 564448080.

The previous prime is 564448043. The next prime is 564448091. The reversal of 564448081 is 180844465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537822481 + 26625600 = 23191^2 + 5160^2 .

It is a cyclic number.

It is not a de Polignac number, because 564448081 - 2¹¹ = 564446033 is a prime.

It is a super-2 number, since 2×564448081² = 637203272289165122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (564448021) 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, 282224040 + 282224041.

It is an arithmetic number, because the mean of its divisors is an integer number (282224041).

Almost surely, 2^564448081 is an apocalyptic number.

It is an amenable number.

564448081 is a deficient number, since it is larger than the sum of its proper divisors (1).

564448081 is an equidigital number, since it uses as much as digits as its factorization.

564448081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 564448081 is about 23758.1161079746. The cubic root of 564448081 is about 826.4336655993.

The spelling of 564448081 in words is "five hundred sixty-four million, four hundred forty-eight thousand, eighty-one".