255507550500 has 48 divisors (see below), whose sum is σ = 744037991424. Its totient is φ = 68135346400.

The previous prime is 255507550469. The next prime is 255507550517. The reversal of 255507550500 is 5055705552.

It is a happy number.

255507550500 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85167684 + ... + 85170683.

It is an arithmetic number, because the mean of its divisors is an integer number (15500791488).

Almost surely, 2^255507550500 is an apocalyptic number.

255507550500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255507550500 is an abundant number, since it is smaller than the sum of its proper divisors (488530440924).

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

255507550500 is a wasteful number, since it uses less digits than its factorization.

255507550500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170338389 (or 170338377 counting only the distinct ones).

The product of its (nonzero) digits is 218750, while the sum is 39.

The spelling of 255507550500 in words is "two hundred fifty-five billion, five hundred seven million, five hundred fifty thousand, five hundred".