252175717 has 2 divisors, whose sum is σ = 252175718. Its totient is φ = 252175716.

The previous prime is 252175711. The next prime is 252175753. The reversal of 252175717 is 717571252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205033761 + 47141956 = 14319^2 + 6866^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252175717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252175711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126087858 + 126087859.

It is an arithmetic number, because the mean of its divisors is an integer number (126087859).

Almost surely, 2^252175717 is an apocalyptic number.

It is an amenable number.

252175717 is a deficient number, since it is larger than the sum of its proper divisors (1).

252175717 is an equidigital number, since it uses as much as digits as its factorization.

252175717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34300, while the sum is 37.

The square root of 252175717 is about 15880.0414672003. The cubic root of 252175717 is about 631.7827367349.

The spelling of 252175717 in words is "two hundred fifty-two million, one hundred seventy-five thousand, seven hundred seventeen".