117556550 has 24 divisors (see below), whose sum is σ = 218940600. Its totient is φ = 46961280.

The previous prime is 117556507. The next prime is 117556561. The reversal of 117556550 is 55655711.

It is a self number, because there is not a number n which added to its sum of digits gives 117556550.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 73661 + ... + 75239.

It is an arithmetic number, because the mean of its divisors is an integer number (9122525).

Almost surely, 2^117556550 is an apocalyptic number.

117556550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117556550 is a deficient number, since it is larger than the sum of its proper divisors (101384050).

117556550 is a wasteful number, since it uses less digits than its factorization.

117556550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3075 counting only the distinct ones).

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

The square root of 117556550 is about 10842.3498375583. The cubic root of 117556550 is about 489.8716170669.

The spelling of 117556550 in words is "one hundred seventeen million, five hundred fifty-six thousand, five hundred fifty".