252576391 has 2 divisors, whose sum is σ = 252576392. Its totient is φ = 252576390.

The previous prime is 252576383. The next prime is 252576397. The reversal of 252576391 is 193675252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252576391 - 2³ = 252576383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252576397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126288195 + 126288196.

It is an arithmetic number, because the mean of its divisors is an integer number (126288196).

Almost surely, 2^252576391 is an apocalyptic number.

252576391 is a deficient number, since it is larger than the sum of its proper divisors (1).

252576391 is an equidigital number, since it uses as much as digits as its factorization.

252576391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 252576391 is about 15892.6521071846. The cubic root of 252576391 is about 632.1171661945.

The spelling of 252576391 in words is "two hundred fifty-two million, five hundred seventy-six thousand, three hundred ninety-one".