52239571 has 2 divisors, whose sum is σ = 52239572. Its totient is φ = 52239570.

The previous prime is 52239559. The next prime is 52239613. The reversal of 52239571 is 17593225.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52239571 - 2⁷ = 52239443 is a prime.

It is not a weakly prime, because it can be changed into another prime (52239541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26119785 + 26119786.

It is an arithmetic number, because the mean of its divisors is an integer number (26119786).

Almost surely, 2^52239571 is an apocalyptic number.

52239571 is a deficient number, since it is larger than the sum of its proper divisors (1).

52239571 is an equidigital number, since it uses as much as digits as its factorization.

52239571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 34.

The square root of 52239571 is about 7227.6947223856. The cubic root of 52239571 is about 373.8234436939.

The spelling of 52239571 in words is "fifty-two million, two hundred thirty-nine thousand, five hundred seventy-one".