115505560 has 64 divisors (see below), whose sum is σ = 274975200. Its totient is φ = 43666560.

The previous prime is 115505501. The next prime is 115505567. The reversal of 115505560 is 65505511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115505567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274150 + ... + 274570.

Almost surely, 2^115505560 is an apocalyptic number.

115505560 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 115505560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137487600).

115505560 is an abundant number, since it is smaller than the sum of its proper divisors (159469640).

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

115505560 is an equidigital number, since it uses as much as digits as its factorization.

115505560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 115505560 is about 10747.3513015999. The cubic root of 115505560 is about 487.0059830019.

The spelling of 115505560 in words is "one hundred fifteen million, five hundred five thousand, five hundred sixty".