252779 has 2 divisors, whose sum is σ = 252780. Its totient is φ = 252778.

The previous prime is 252767. The next prime is 252817. The reversal of 252779 is 977252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252779 - 2¹² = 248683 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a nialpdrome in base 8.

It is not a weakly prime, because it can be changed into another prime (252709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126389 + 126390.

It is an arithmetic number, because the mean of its divisors is an integer number (126390).

2²⁵²⁷⁷⁹ is an apocalyptic number.

252779 is a deficient number, since it is larger than the sum of its proper divisors (1).

252779 is an equidigital number, since it uses as much as digits as its factorization.

252779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 32.

The square root of 252779 is about 502.7713197866. The cubic root of 252779 is about 63.2286142659.

The spelling of 252779 in words is "two hundred fifty-two thousand, seven hundred seventy-nine".