564026531 has 2 divisors, whose sum is σ = 564026532. Its totient is φ = 564026530.

The previous prime is 564026513. The next prime is 564026621. The reversal of 564026531 is 135620465.

564026531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (564026513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564026531 is a prime.

It is a super-2 number, since 2×564026531² = 636251855343787922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (564026501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282013265 + 282013266.

It is an arithmetic number, because the mean of its divisors is an integer number (282013266).

Almost surely, 2^564026531 is an apocalyptic number.

564026531 is a deficient number, since it is larger than the sum of its proper divisors (1).

564026531 is an equidigital number, since it uses as much as digits as its factorization.

564026531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 564026531 is about 23749.2427458224. The cubic root of 564026531 is about 826.2278776282.

Adding to 564026531 its reverse (135620465), we get a palindrome (699646996).

The spelling of 564026531 in words is "five hundred sixty-four million, twenty-six thousand, five hundred thirty-one".