55403224 has 32 divisors (see below), whose sum is σ = 109771200. Its totient is φ = 26172160.

The previous prime is 55403219. The next prime is 55403233. The reversal of 55403224 is 42230455.

55403224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8364 + ... + 13444.

It is an arithmetic number, because the mean of its divisors is an integer number (3430350).

Almost surely, 2^55403224 is an apocalyptic number.

It is an amenable number.

55403224 is a deficient number, since it is larger than the sum of its proper divisors (54367976).

55403224 is a wasteful number, since it uses less digits than its factorization.

55403224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163 (or 5159 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 55403224 is about 7443.3341991341. The cubic root of 55403224 is about 381.2223427397. Note that the first 3 decimals are identical.

Adding to 55403224 its reverse (42230455), we get a palindrome (97633679).

The spelling of 55403224 in words is "fifty-five million, four hundred three thousand, two hundred twenty-four".