115553886 has 128 divisors (see below), whose sum is σ = 293124096. Its totient is φ = 29652480.

The previous prime is 115553873. The next prime is 115553891. The reversal of 115553886 is 688355511.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1894296 + ... + 1894356.

It is an arithmetic number, because the mean of its divisors is an integer number (2290032).

Almost surely, 2^115553886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115553886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146562048).

115553886 is an abundant number, since it is smaller than the sum of its proper divisors (177570210).

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

115553886 is a wasteful number, since it uses less digits than its factorization.

115553886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186.

The product of its digits is 144000, while the sum is 42.

The square root of 115553886 is about 10749.5993413708. The cubic root of 115553886 is about 487.0738924879.

The spelling of 115553886 in words is "one hundred fifteen million, five hundred fifty-three thousand, eight hundred eighty-six".