52564643 has 2 divisors, whose sum is σ = 52564644. Its totient is φ = 52564642.

The previous prime is 52564639. The next prime is 52564651. The reversal of 52564643 is 34646525.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52564643 - 2² = 52564639 is a prime.

It is not a weakly prime, because it can be changed into another prime (52564613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26282321 + 26282322.

It is an arithmetic number, because the mean of its divisors is an integer number (26282322).

Almost surely, 2^52564643 is an apocalyptic number.

52564643 is a deficient number, since it is larger than the sum of its proper divisors (1).

52564643 is an equidigital number, since it uses as much as digits as its factorization.

52564643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 35.

The square root of 52564643 is about 7250.1477915971. The cubic root of 52564643 is about 374.5972398759.

The spelling of 52564643 in words is "fifty-two million, five hundred sixty-four thousand, six hundred forty-three".