252660241 has 2 divisors, whose sum is σ = 252660242. Its totient is φ = 252660240.

The previous prime is 252660229. The next prime is 252660301. The reversal of 252660241 is 142066252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252651025 + 9216 = 15895^2 + 96^2 .

It is a cyclic number.

It is not a de Polignac number, because 252660241 - 2⁷ = 252660113 is a prime.

It is not a weakly prime, because it can be changed into another prime (252660211) 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, 126330120 + 126330121.

It is an arithmetic number, because the mean of its divisors is an integer number (126330121).

Almost surely, 2^252660241 is an apocalyptic number.

It is an amenable number.

252660241 is a deficient number, since it is larger than the sum of its proper divisors (1).

252660241 is an equidigital number, since it uses as much as digits as its factorization.

252660241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 252660241 is about 15895.2898998414. The cubic root of 252660241 is about 632.1871082821.

The spelling of 252660241 in words is "two hundred fifty-two million, six hundred sixty thousand, two hundred forty-one".