252790591 has 2 divisors, whose sum is σ = 252790592. Its totient is φ = 252790590.

The previous prime is 252790583. The next prime is 252790609. The reversal of 252790591 is 195097252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252790591 - 2³ = 252790583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252790501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126395295 + 126395296.

It is an arithmetic number, because the mean of its divisors is an integer number (126395296).

Almost surely, 2^252790591 is an apocalyptic number.

252790591 is a deficient number, since it is larger than the sum of its proper divisors (1).

252790591 is an equidigital number, since it uses as much as digits as its factorization.

252790591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 252790591 is about 15899.3896423731. The cubic root of 252790591 is about 632.2958068543.

The spelling of 252790591 in words is "two hundred fifty-two million, seven hundred ninety thousand, five hundred ninety-one".