564770081 has 4 divisors (see below), whose sum is σ = 564824964. Its totient is φ = 564715200.

The previous prime is 564770069. The next prime is 564770111. The reversal of 564770081 is 180077465.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 258695056 + 306075025 = 16084^2 + 17495^2 .

It is a cyclic number.

It is not a de Polignac number, because 564770081 - 2¹⁰ = 564769057 is a prime.

It is a super-2 number, since 2×564770081² = 637930488785493122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564770051) 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 in 3 ways as a sum of consecutive naturals, for example, 6860 + ... + 34301.

It is an arithmetic number, because the mean of its divisors is an integer number (141206241).

Almost surely, 2^564770081 is an apocalyptic number.

564770081 is the 13721-st octagonal number.

It is an amenable number.

564770081 is a deficient number, since it is larger than the sum of its proper divisors (54883).

564770081 is a wasteful number, since it uses less digits than its factorization.

564770081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54882.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 564770081 is about 23764.8917733702. The cubic root of 564770081 is about 826.5907872564.

The spelling of 564770081 in words is "five hundred sixty-four million, seven hundred seventy thousand, eighty-one".