117557256 has 64 divisors (see below), whose sum is σ = 313804800. Its totient is φ = 36590400.

The previous prime is 117557249. The next prime is 117557257. The reversal of 117557256 is 652755711.

It is not an unprimeable number, because it can be changed into a prime (117557257) 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, 30561 + ... + 34191.

It is an arithmetic number, because the mean of its divisors is an integer number (4903200).

Almost surely, 2^117557256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117557256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156902400).

117557256 is an abundant number, since it is smaller than the sum of its proper divisors (196247544).

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

117557256 is a wasteful number, since it uses less digits than its factorization.

117557256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3730 (or 3726 counting only the distinct ones).

The product of its digits is 73500, while the sum is 39.

The square root of 117557256 is about 10842.3823950274. The cubic root of 117557256 is about 489.8725977259.

The spelling of 117557256 in words is "one hundred seventeen million, five hundred fifty-seven thousand, two hundred fifty-six".