55624444 has 12 divisors (see below), whose sum is σ = 98236600. Its totient is φ = 27556848.

The previous prime is 55624427. The next prime is 55624463. The reversal of 55624444 is 44442655.

55624444 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 3 ways as a sum of consecutive naturals, for example, 63354 + ... + 64225.

Almost surely, 2^55624444 is an apocalyptic number.

It is an amenable number.

55624444 is a deficient number, since it is larger than the sum of its proper divisors (42612156).

55624444 is a wasteful number, since it uses less digits than its factorization.

55624444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127692 (or 127690 counting only the distinct ones).

The product of its digits is 76800, while the sum is 34.

The square root of 55624444 is about 7458.1796706703. The cubic root of 55624444 is about 381.7290642078.

The spelling of 55624444 in words is "fifty-five million, six hundred twenty-four thousand, four hundred forty-four".