252766961 has 2 divisors, whose sum is σ = 252766962. Its totient is φ = 252766960.

The previous prime is 252766951. The next prime is 252766991. The reversal of 252766961 is 169667252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216237025 + 36529936 = 14705^2 + 6044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252766961 is a prime.

It is a super-2 number, since 2×252766961² = 127782273146351042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252766951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126383480 + 126383481.

It is an arithmetic number, because the mean of its divisors is an integer number (126383481).

Almost surely, 2^252766961 is an apocalyptic number.

It is an amenable number.

252766961 is a deficient number, since it is larger than the sum of its proper divisors (1).

252766961 is an equidigital number, since it uses as much as digits as its factorization.

252766961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 252766961 is about 15898.6465147194. The cubic root of 252766961 is about 632.2761046238.

The spelling of 252766961 in words is "two hundred fifty-two million, seven hundred sixty-six thousand, nine hundred sixty-one".