255800775500 has 48 divisors (see below), whose sum is σ = 565740739200. Its totient is φ = 101025100800.

The previous prime is 255800775491. The next prime is 255800775577. The reversal of 255800775500 is 5577008552.

255800775500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3198485 + ... + 3277484.

It is an arithmetic number, because the mean of its divisors is an integer number (11786265400).

Almost surely, 2^255800775500 is an apocalyptic number.

255800775500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255800775500 is an abundant number, since it is smaller than the sum of its proper divisors (309939963700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255800775500 is a wasteful number, since it uses less digits than its factorization.

255800775500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476067 (or 6476055 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 44.

The spelling of 255800775500 in words is "two hundred fifty-five billion, eight hundred million, seven hundred seventy-five thousand, five hundred".