115639056 has 160 divisors (see below), whose sum is σ = 364560000. Its totient is φ = 34877952.

The previous prime is 115639033. The next prime is 115639061. The reversal of 115639056 is 650936511.

115639056 is a `hidden beast` number, since 1 + 1 + 563 + 90 + 5 + 6 = 666.

It is a super-2 number, since 2×115639056² = 26744782545142272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 115639056.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331170 + ... + 331518.

It is an arithmetic number, because the mean of its divisors is an integer number (2278500).

Almost surely, 2^115639056 is an apocalyptic number.

115639056 is a gapful number since it is divisible by the number (16) 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 115639056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182280000).

115639056 is an abundant number, since it is smaller than the sum of its proper divisors (248920944).

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

115639056 is a wasteful number, since it uses less digits than its factorization.

115639056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 115639056 is about 10753.5601546651. The cubic root of 115639056 is about 487.1935304535.

The spelling of 115639056 in words is "one hundred fifteen million, six hundred thirty-nine thousand, fifty-six".