115994550 has 96 divisors (see below), whose sum is σ = 334335744. Its totient is φ = 26064000.

The previous prime is 115994539. The next prime is 115994569. The reversal of 115994550 is 55499511.

It is a junction number, because it is equal to n+sod(n) for n = 115994499 and 115994508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63145 + ... + 64955.

It is an arithmetic number, because the mean of its divisors is an integer number (3482664).

Almost surely, 2^115994550 is an apocalyptic number.

115994550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115994550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167167872).

115994550 is an abundant number, since it is smaller than the sum of its proper divisors (218341194).

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

115994550 is a wasteful number, since it uses less digits than its factorization.

115994550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894 (or 1889 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 39.

The square root of 115994550 is about 10770.0766013989. The cubic root of 115994550 is about 487.6922581589.

The spelling of 115994550 in words is "one hundred fifteen million, nine hundred ninety-four thousand, five hundred fifty".