564386531 has 2 divisors, whose sum is σ = 564386532. Its totient is φ = 564386530.

The previous prime is 564386513. The next prime is 564386539. The reversal of 564386531 is 135683465.

Together with previous prime (564386513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 564386531 - 2⁶ = 564386467 is a prime.

It is a super-2 number, since 2×564386531² = 637064312748427922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (564386539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282193265 + 282193266.

It is an arithmetic number, because the mean of its divisors is an integer number (282193266).

Almost surely, 2^564386531 is an apocalyptic number.

564386531 is a deficient number, since it is larger than the sum of its proper divisors (1).

564386531 is an equidigital number, since it uses as much as digits as its factorization.

564386531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 41.

The square root of 564386531 is about 23756.8207258463. The cubic root of 564386531 is about 826.4036251386.

The spelling of 564386531 in words is "five hundred sixty-four million, three hundred eighty-six thousand, five hundred thirty-one".