52564609 has 2 divisors, whose sum is σ = 52564610. Its totient is φ = 52564608.

The previous prime is 52564579. The next prime is 52564613. The reversal of 52564609 is 90646525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49914225 + 2650384 = 7065^2 + 1628^2 .

It is a cyclic number.

It is not a de Polignac number, because 52564609 - 2¹¹ = 52562561 is a prime.

It is not a weakly prime, because it can be changed into another prime (52564639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26282304 + 26282305.

It is an arithmetic number, because the mean of its divisors is an integer number (26282305).

Almost surely, 2^52564609 is an apocalyptic number.

It is an amenable number.

52564609 is a deficient number, since it is larger than the sum of its proper divisors (1).

52564609 is an equidigital number, since it uses as much as digits as its factorization.

52564609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 52564609 is about 7250.1454468169. The cubic root of 52564609 is about 374.5971591099.

The spelling of 52564609 in words is "fifty-two million, five hundred sixty-four thousand, six hundred nine".