252251291 has 2 divisors, whose sum is σ = 252251292. Its totient is φ = 252251290.

The previous prime is 252251273. The next prime is 252251333. The reversal of 252251291 is 192152252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252251291 - 2⁶ = 252251227 is a prime.

It is a super-2 number, since 2×252251291² = 127261427622333362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252251891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126125645 + 126125646.

It is an arithmetic number, because the mean of its divisors is an integer number (126125646).

Almost surely, 2^252251291 is an apocalyptic number.

252251291 is a deficient number, since it is larger than the sum of its proper divisors (1).

252251291 is an equidigital number, since it uses as much as digits as its factorization.

252251291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 29.

The square root of 252251291 is about 15882.4208167395. The cubic root of 252251291 is about 631.8458429692.

The spelling of 252251291 in words is "two hundred fifty-two million, two hundred fifty-one thousand, two hundred ninety-one".