564308081 has 8 divisors (see below), whose sum is σ = 600508800. Its totient is φ = 528441408.

The previous prime is 564308029. The next prime is 564308089. The reversal of 564308081 is 180803465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564308081 is a prime.

It is a super-2 number, since 2×564308081² = 636887220563805122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564308089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80021 + ... + 86786.

It is an arithmetic number, because the mean of its divisors is an integer number (75063600).

Almost surely, 2^564308081 is an apocalyptic number.

It is an amenable number.

564308081 is a deficient number, since it is larger than the sum of its proper divisors (36200719).

564308081 is a wasteful number, since it uses less digits than its factorization.

564308081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167023.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 564308081 is about 23755.1695636971. The cubic root of 564308081 is about 826.3653331969.

The spelling of 564308081 in words is "five hundred sixty-four million, three hundred eight thousand, eighty-one".