55388 has 12 divisors (see below), whose sum is σ = 98952. Its totient is φ = 27120.

The previous prime is 55381. The next prime is 55399. The reversal of 55388 is 88355.

55388 is nontrivially palindromic in base 11.

55388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55388.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55388.

It is not an unprimeable number, because it can be changed into a prime (55381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131 + ... + 357.

It is an arithmetic number, because the mean of its divisors is an integer number (8246).

2⁵⁵³⁸⁸ is an apocalyptic number.

It is an amenable number.

55388 is a deficient number, since it is larger than the sum of its proper divisors (43564).

55388 is a wasteful number, since it uses less digits than its factorization.

55388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 290 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 55388 is about 235.3465529809. The cubic root of 55388 is about 38.1187421423.

The spelling of 55388 in words is "fifty-five thousand, three hundred eighty-eight".