55118816 has 12 divisors (see below), whose sum is σ = 108515232. Its totient is φ = 27559392.

The previous prime is 55118813. The next prime is 55118839. The reversal of 55118816 is 61881155.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55118813) 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 as a sum of consecutive naturals, namely, 861200 + ... + 861263.

It is an arithmetic number, because the mean of its divisors is an integer number (9042936).

Almost surely, 2^55118816 is an apocalyptic number.

It is an amenable number.

55118816 is a deficient number, since it is larger than the sum of its proper divisors (53396416).

55118816 is a wasteful number, since it uses less digits than its factorization.

55118816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722473 (or 1722465 counting only the distinct ones).

The product of its digits is 9600, while the sum is 35.

The square root of 55118816 is about 7424.2047385562. The cubic root of 55118816 is about 380.5688985686.

The spelling of 55118816 in words is "fifty-five million, one hundred eighteen thousand, eight hundred sixteen".