252044857 has 2 divisors, whose sum is σ = 252044858. Its totient is φ = 252044856.

The previous prime is 252044827. The next prime is 252044893. The reversal of 252044857 is 758440252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199685161 + 52359696 = 14131^2 + 7236^2 .

It is a cyclic number.

It is not a de Polignac number, because 252044857 - 2¹⁹ = 251520569 is a prime.

It is not a weakly prime, because it can be changed into another prime (252044827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126022428 + 126022429.

It is an arithmetic number, because the mean of its divisors is an integer number (126022429).

Almost surely, 2^252044857 is an apocalyptic number.

It is an amenable number.

252044857 is a deficient number, since it is larger than the sum of its proper divisors (1).

252044857 is an equidigital number, since it uses as much as digits as its factorization.

252044857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89600, while the sum is 37.

The square root of 252044857 is about 15875.9206662165. The cubic root of 252044857 is about 631.6734354446.

The spelling of 252044857 in words is "two hundred fifty-two million, forty-four thousand, eight hundred fifty-seven".