252361757 has 2 divisors, whose sum is σ = 252361758. Its totient is φ = 252361756.

The previous prime is 252361751. The next prime is 252361777. The reversal of 252361757 is 757163252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165611161 + 86750596 = 12869^2 + 9314^2 .

It is a cyclic number.

It is not a de Polignac number, because 252361757 - 2²⁴ = 235584541 is a prime.

It is a super-2 number, since 2×252361757² = 127372912792254098, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252361757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252361751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126180878 + 126180879.

It is an arithmetic number, because the mean of its divisors is an integer number (126180879).

Almost surely, 2^252361757 is an apocalyptic number.

It is an amenable number.

252361757 is a deficient number, since it is larger than the sum of its proper divisors (1).

252361757 is an equidigital number, since it uses as much as digits as its factorization.

252361757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 38.

The square root of 252361757 is about 15885.8980545640. The cubic root of 252361757 is about 631.9380622485.

The spelling of 252361757 in words is "two hundred fifty-two million, three hundred sixty-one thousand, seven hundred fifty-seven".