252052397 has 2 divisors, whose sum is σ = 252052398. Its totient is φ = 252052396.

The previous prime is 252052393. The next prime is 252052447. The reversal of 252052397 is 793250252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250462276 + 1590121 = 15826^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 252052397 - 2² = 252052393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252052391) 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, 126026198 + 126026199.

It is an arithmetic number, because the mean of its divisors is an integer number (126026199).

Almost surely, 2^252052397 is an apocalyptic number.

It is an amenable number.

252052397 is a deficient number, since it is larger than the sum of its proper divisors (1).

252052397 is an equidigital number, since it uses as much as digits as its factorization.

252052397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 252052397 is about 15876.1581309837. The cubic root of 252052397 is about 631.6797342839.

The spelling of 252052397 in words is "two hundred fifty-two million, fifty-two thousand, three hundred ninety-seven".