255560100 has 72 divisors (see below), whose sum is σ = 743994048. Its totient is φ = 67728000.

The previous prime is 255560077. The next prime is 255560141. The reversal of 255560100 is 1065552.

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, 47550 + ... + 52650.

Almost surely, 2^255560100 is an apocalyptic number.

255560100 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 255560100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371997024).

255560100 is an abundant number, since it is smaller than the sum of its proper divisors (488433948).

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

255560100 is a wasteful number, since it uses less digits than its factorization.

255560100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285 (or 5278 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 255560100 is about 15986.2472144028. The cubic root of 255560100 is about 634.5965155370.

The spelling of 255560100 in words is "two hundred fifty-five million, five hundred sixty thousand, one hundred".