252999426855 has 32 divisors (see below), whose sum is σ = 462983367168. Its totient is φ = 115567920000.

The previous prime is 252999426851. The next prime is 252999426877. The reversal of 252999426855 is 558624999252.

It is a happy number.

It is not a de Polignac number, because 252999426855 - 2² = 252999426851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252999426851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 789421 + ... + 1062630.

It is an arithmetic number, because the mean of its divisors is an integer number (14468230224).

Almost surely, 2^252999426855 is an apocalyptic number.

252999426855 is a deficient number, since it is larger than the sum of its proper divisors (209983940313).

252999426855 is a wasteful number, since it uses less digits than its factorization.

252999426855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853367.

The product of its digits is 139968000, while the sum is 66.

The spelling of 252999426855 in words is "two hundred fifty-two billion, nine hundred ninety-nine million, four hundred twenty-six thousand, eight hundred fifty-five".