252302779 has 2 divisors, whose sum is σ = 252302780. Its totient is φ = 252302778.

The previous prime is 252302777. The next prime is 252302789. The reversal of 252302779 is 977203252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252302779 - 2¹ = 252302777 is a prime.

It is a super-2 number, since 2×252302779² = 127313384582245682, which contains 22 as substring.

Together with 252302777, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252302777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126151389 + 126151390.

It is an arithmetic number, because the mean of its divisors is an integer number (126151390).

Almost surely, 2^252302779 is an apocalyptic number.

252302779 is a deficient number, since it is larger than the sum of its proper divisors (1).

252302779 is an equidigital number, since it uses as much as digits as its factorization.

252302779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 252302779 is about 15884.0416456266. The cubic root of 252302779 is about 631.8888295554. Note that the first 4 decimals are identical.

It can be divided in two parts, 252 and 302779, that added together give a triangular number (303031 = T₇₇₈).

The spelling of 252302779 in words is "two hundred fifty-two million, three hundred two thousand, seven hundred seventy-nine".