55388044 has 12 divisors (see below), whose sum is σ = 97870864. Its totient is φ = 27424944.

The previous prime is 55388027. The next prime is 55388077. The reversal of 55388044 is 44088355.

It is a happy number.

55388044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55387994 and 55388012.

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, 66807 + ... + 67630.

Almost surely, 2^55388044 is an apocalyptic number.

It is an amenable number.

55388044 is a deficient number, since it is larger than the sum of its proper divisors (42482820).

55388044 is a wasteful number, since it uses less digits than its factorization.

55388044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134544 (or 134542 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 55388044 is about 7442.3144249622. The cubic root of 55388044 is about 381.1875223608.

The spelling of 55388044 in words is "fifty-five million, three hundred eighty-eight thousand, forty-four".