52564387 has 2 divisors, whose sum is σ = 52564388. Its totient is φ = 52564386.

The previous prime is 52564367. The next prime is 52564399. The reversal of 52564387 is 78346525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52564387 - 2¹¹ = 52562339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52564367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26282193 + 26282194.

It is an arithmetic number, because the mean of its divisors is an integer number (26282194).

Almost surely, 2^52564387 is an apocalyptic number.

52564387 is a deficient number, since it is larger than the sum of its proper divisors (1).

52564387 is an equidigital number, since it uses as much as digits as its factorization.

52564387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The square root of 52564387 is about 7250.1301367631. The cubic root of 52564387 is about 374.5966317545.

The spelling of 52564387 in words is "fifty-two million, five hundred sixty-four thousand, three hundred eighty-seven".