115205500 has 48 divisors (see below), whose sum is σ = 254165184. Its totient is φ = 45614400.

The previous prime is 115205483. The next prime is 115205513. The reversal of 115205500 is 5502511.

It is a congruent number.

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, 50382 + ... + 52618.

It is an arithmetic number, because the mean of its divisors is an integer number (5295108).

Almost surely, 2^115205500 is an apocalyptic number.

115205500 is a gapful number since it is divisible by the number (10) 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 115205500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127082592).

115205500 is an abundant number, since it is smaller than the sum of its proper divisors (138959684).

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

115205500 is a wasteful number, since it uses less digits than its factorization.

115205500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359 (or 2347 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 115205500 is about 10733.3825050634. The cubic root of 115205500 is about 486.5839030668.

It can be divided in two parts, 11520 and 5500, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 115205500 in words is "one hundred fifteen million, two hundred five thousand, five hundred".