252998957 has 2 divisors, whose sum is σ = 252998958. Its totient is φ = 252998956.

The previous prime is 252998951. The next prime is 252999053. The reversal of 252998957 is 759899252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227738281 + 25260676 = 15091^2 + 5026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252998957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252998951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126499478 + 126499479.

It is an arithmetic number, because the mean of its divisors is an integer number (126499479).

Almost surely, 2^252998957 is an apocalyptic number.

It is an amenable number.

252998957 is a deficient number, since it is larger than the sum of its proper divisors (1).

252998957 is an equidigital number, since it uses as much as digits as its factorization.

252998957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 56.

The square root of 252998957 is about 15905.9409341290. The cubic root of 252998957 is about 632.4694852146.

The spelling of 252998957 in words is "two hundred fifty-two million, nine hundred ninety-eight thousand, nine hundred fifty-seven".