564020331 has 24 divisors (see below), whose sum is σ = 875725200. Its totient is φ = 321959232.

The previous prime is 564020321. The next prime is 564020357. The reversal of 564020331 is 133020465.

It is a happy number.

It is not a de Polignac number, because 564020331 - 2⁵ = 564020299 is a prime.

It is a super-2 number, since 2×564020331² = 636237867562699122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (564020311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 226465 + ... + 228941.

It is an arithmetic number, because the mean of its divisors is an integer number (36488550).

Almost surely, 2^564020331 is an apocalyptic number.

564020331 is a deficient number, since it is larger than the sum of its proper divisors (311704869).

564020331 is a wasteful number, since it uses less digits than its factorization.

564020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043 (or 4036 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 564020331 is about 23749.1122149861. The cubic root of 564020331 is about 826.2248502106.

Adding to 564020331 its reverse (133020465), we get a palindrome (697040796).

The spelling of 564020331 in words is "five hundred sixty-four million, twenty thousand, three hundred thirty-one".