252656039 has 2 divisors, whose sum is σ = 252656040. Its totient is φ = 252656038.

The previous prime is 252656011. The next prime is 252656051. The reversal of 252656039 is 930656252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252656039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252655993 and 252656011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252656539) 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, 126328019 + 126328020.

It is an arithmetic number, because the mean of its divisors is an integer number (126328020).

Almost surely, 2^252656039 is an apocalyptic number.

252656039 is a deficient number, since it is larger than the sum of its proper divisors (1).

252656039 is an equidigital number, since it uses as much as digits as its factorization.

252656039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 252656039 is about 15895.1577217717. The cubic root of 252656039 is about 632.1836036218.

The spelling of 252656039 in words is "two hundred fifty-two million, six hundred fifty-six thousand, thirty-nine".