252909278459 has 2 divisors, whose sum is σ = 252909278460. Its totient is φ = 252909278458.

The previous prime is 252909278441. The next prime is 252909278491. The reversal of 252909278459 is 954872909252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252909278459 is a prime.

It is not a weakly prime, because it can be changed into another prime (252909278759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126454639229 + 126454639230.

It is an arithmetic number, because the mean of its divisors is an integer number (126454639230).

Almost surely, 2^252909278459 is an apocalyptic number.

252909278459 is a deficient number, since it is larger than the sum of its proper divisors (1).

252909278459 is an equidigital number, since it uses as much as digits as its factorization.

252909278459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 252909278459 in words is "two hundred fifty-two billion, nine hundred nine million, two hundred seventy-eight thousand, four hundred fifty-nine".