55304224 has 12 divisors (see below), whose sum is σ = 108880254. Its totient is φ = 27652096.

The previous prime is 55304219. The next prime is 55304239. The reversal of 55304224 is 42240355.

It can be written as a sum of positive squares in only one way, i.e., 40094224 + 15210000 = 6332^2 + 3900^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864097 + ... + 864160.

Almost surely, 2^55304224 is an apocalyptic number.

It is an amenable number.

55304224 is a deficient number, since it is larger than the sum of its proper divisors (53576030).

55304224 is a wasteful number, since it uses less digits than its factorization.

55304224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728267 (or 1728259 counting only the distinct ones).

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

The square root of 55304224 is about 7436.6809801147. The cubic root of 55304224 is about 380.9951386690.

Adding to 55304224 its reverse (42240355), we get a palindrome (97544579).

The spelling of 55304224 in words is "fifty-five million, three hundred four thousand, two hundred twenty-four".