255585256885 has 32 divisors (see below), whose sum is σ = 352332806400. Its totient is φ = 174351260160.

The previous prime is 255585256877. The next prime is 255585256981. The reversal of 255585256885 is 588652585552.

It is a happy number.

It is not a de Polignac number, because 255585256885 - 2³ = 255585256877 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 20590561 + ... + 20602969.

It is an arithmetic number, because the mean of its divisors is an integer number (11010400200).

Almost surely, 2^255585256885 is an apocalyptic number.

It is an amenable number.

255585256885 is a deficient number, since it is larger than the sum of its proper divisors (96747549515).

255585256885 is a wasteful number, since it uses less digits than its factorization.

255585256885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15421.

The product of its digits is 192000000, while the sum is 64.

The spelling of 255585256885 in words is "two hundred fifty-five billion, five hundred eighty-five million, two hundred fifty-six thousand, eight hundred eighty-five".