55118424 has 32 divisors (see below), whose sum is σ = 138046320. Its totient is φ = 18339456.

The previous prime is 55118363. The next prime is 55118443. The reversal of 55118424 is 42481155.

It is a junction number, because it is equal to n+sod(n) for n = 55118391 and 55118400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13914 + ... + 17430.

Almost surely, 2^55118424 is an apocalyptic number.

It is an amenable number.

55118424 is an abundant number, since it is smaller than the sum of its proper divisors (82927896).

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

55118424 is a wasteful number, since it uses less digits than its factorization.

55118424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179 (or 4175 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 55118424 is about 7424.1783383752. The cubic root of 55118424 is about 380.5679963760.

Adding to 55118424 its reverse (42481155), we get a palindrome (97599579).

The spelling of 55118424 in words is "fifty-five million, one hundred eighteen thousand, four hundred twenty-four".