117996550 has 48 divisors (see below), whose sum is σ = 255599712. Its totient is φ = 39686400.

The previous prime is 117996539. The next prime is 117996569. The reversal of 117996550 is 55699711.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 117996497 and 117996506.

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 23 ways as a sum of consecutive naturals, for example, 15370 + ... + 21730.

It is an arithmetic number, because the mean of its divisors is an integer number (5324994).

Almost surely, 2^117996550 is an apocalyptic number.

117996550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117996550 is an abundant number, since it is smaller than the sum of its proper divisors (137603162).

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

117996550 is a wasteful number, since it uses less digits than its factorization.

117996550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433 (or 6428 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 43.

The square root of 117996550 is about 10862.6216909179. The cubic root of 117996550 is about 490.4820329377.

The spelling of 117996550 in words is "one hundred seventeen million, nine hundred ninety-six thousand, five hundred fifty".