55115224 has 32 divisors (see below), whose sum is σ = 110073600. Its totient is φ = 25781760.

The previous prime is 55115213. The next prime is 55115227. The reversal of 55115224 is 42251155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23497 + ... + 25735.

It is an arithmetic number, because the mean of its divisors is an integer number (3439800).

Almost surely, 2^55115224 is an apocalyptic number.

It is an amenable number.

55115224 is a deficient number, since it is larger than the sum of its proper divisors (54958376).

55115224 is a wasteful number, since it uses less digits than its factorization.

55115224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443 (or 2439 counting only the distinct ones).

The product of its digits is 2000, while the sum is 25.

The square root of 55115224 is about 7423.9628231828. The cubic root of 55115224 is about 380.5606313786.

Adding to 55115224 its reverse (42251155), we get a palindrome (97366379).

The spelling of 55115224 in words is "fifty-five million, one hundred fifteen thousand, two hundred twenty-four".