252016637 has 2 divisors, whose sum is σ = 252016638. Its totient is φ = 252016636.

The previous prime is 252016601. The next prime is 252016651. The reversal of 252016637 is 736610252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251983876 + 32761 = 15874^2 + 181^2 .

It is a cyclic number.

It is not a de Polignac number, because 252016637 - 2²⁶ = 184907773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252016697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126008318 + 126008319.

It is an arithmetic number, because the mean of its divisors is an integer number (126008319).

Almost surely, 2^252016637 is an apocalyptic number.

It is an amenable number.

252016637 is a deficient number, since it is larger than the sum of its proper divisors (1).

252016637 is an equidigital number, since it uses as much as digits as its factorization.

252016637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 252016637 is about 15875.0318739837. The cubic root of 252016637 is about 631.6498596284.

Adding to 252016637 its reverse (736610252), we get a palindrome (988626889).

The spelling of 252016637 in words is "two hundred fifty-two million, sixteen thousand, six hundred thirty-seven".