117556505 has 8 divisors (see below), whose sum is σ = 153892224. Its totient is φ = 85495600.

The previous prime is 117556501. The next prime is 117556507. The reversal of 117556505 is 505655711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117556505 - 2² = 117556501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117556501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068641 + ... + 1068750.

It is an arithmetic number, because the mean of its divisors is an integer number (19236528).

Almost surely, 2^117556505 is an apocalyptic number.

It is an amenable number.

117556505 is a deficient number, since it is larger than the sum of its proper divisors (36335719).

117556505 is a wasteful number, since it uses less digits than its factorization.

117556505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137407.

The product of its (nonzero) digits is 26250, while the sum is 35.

The square root of 117556505 is about 10842.3477623622. The cubic root of 117556505 is about 489.8715545602.

The spelling of 117556505 in words is "one hundred seventeen million, five hundred fifty-six thousand, five hundred five".