255115331100 has 216 divisors, whose sum is σ = 914691872640. Its totient is φ = 58260263040.

The previous prime is 255115330931. The next prime is 255115331161. The reversal of 255115331100 is 1133511552.

255115331100 is a `hidden beast` number, since 2 + 5 + 5 + 11 + 533 + 110 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7309491 + ... + 7344309.

Almost surely, 2^255115331100 is an apocalyptic number.

255115331100 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 255115331100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457345936320).

255115331100 is an abundant number, since it is smaller than the sum of its proper divisors (659576541540).

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

255115331100 is a wasteful number, since it uses less digits than its factorization.

255115331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36009 (or 35999 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

Adding to 255115331100 its reverse (1133511552), we get a palindrome (256248842652).

The spelling of 255115331100 in words is "two hundred fifty-five billion, one hundred fifteen million, three hundred thirty-one thousand, one hundred".