255250250500 has 96 divisors (see below), whose sum is σ = 638943701760. Its totient is φ = 87261753600.

The previous prime is 255250250461. The next prime is 255250250531. The reversal of 255250250500 is 5052052552.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1109416 + ... + 1319584.

It is an arithmetic number, because the mean of its divisors is an integer number (6655663560).

Almost surely, 2^255250250500 is an apocalyptic number.

255250250500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255250250500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319471850880).

255250250500 is an abundant number, since it is smaller than the sum of its proper divisors (383693451260).

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

255250250500 is a wasteful number, since it uses less digits than its factorization.

255250250500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210542 (or 210530 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 31.

The spelling of 255250250500 in words is "two hundred fifty-five billion, two hundred fifty million, two hundred fifty thousand, five hundred".