252805807775 has 24 divisors (see below), whose sum is σ = 316168446960. Its totient is φ = 200515311360.

The previous prime is 252805807759. The next prime is 252805807781. The reversal of 252805807775 is 577708508252.

It is not a de Polignac number, because 252805807775 - 2⁴ = 252805807759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252805807775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1723256 + ... + 1864194.

It is an arithmetic number, because the mean of its divisors is an integer number (13173685290).

Almost surely, 2^252805807775 is an apocalyptic number.

252805807775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

252805807775 is a deficient number, since it is larger than the sum of its proper divisors (63362639185).

252805807775 is a wasteful number, since it uses less digits than its factorization.

252805807775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141563 (or 141558 counting only the distinct ones).

The product of its (nonzero) digits is 10976000, while the sum is 56.

The spelling of 252805807775 in words is "two hundred fifty-two billion, eight hundred five million, eight hundred seven thousand, seven hundred seventy-five".