55113224 has 32 divisors (see below), whose sum is σ = 112536000. Its totient is φ = 25204032.

The previous prime is 55113211. The next prime is 55113251. The reversal of 55113224 is 42231155.

It is a self number, because there is not a number n which added to its sum of digits gives 55113224.

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 7 ways as a sum of consecutive naturals, for example, 1844 + ... + 10659.

It is an arithmetic number, because the mean of its divisors is an integer number (3516750).

Almost surely, 2^55113224 is an apocalyptic number.

It is an amenable number.

55113224 is an abundant number, since it is smaller than the sum of its proper divisors (57422776).

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

55113224 is a wasteful number, since it uses less digits than its factorization.

55113224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557 (or 12553 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 55113224 is about 7423.8281230104. The cubic root of 55113224 is about 380.5560281104.

Adding to 55113224 its reverse (42231155), we get a palindrome (97344379).

The spelling of 55113224 in words is "fifty-five million, one hundred thirteen thousand, two hundred twenty-four".