55885 has 4 divisors (see below), whose sum is σ = 67068. Its totient is φ = 44704.

The previous prime is 55871. The next prime is 55889. The reversal of 55885 is 58855.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35721 + 20164 = 189^2 + 142^2 .

It is a cyclic number.

It is not a de Polignac number, because 55885 - 2⁹ = 55373 is a prime.

It is an Ulam number.

It is a Duffinian number.

55885 is a lucky number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55889) 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, 5584 + ... + 5593.

It is an arithmetic number, because the mean of its divisors is an integer number (16767).

2⁵⁵⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

55885 is a deficient number, since it is larger than the sum of its proper divisors (11183).

55885 is a wasteful number, since it uses less digits than its factorization.

55885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11182.

The product of its digits is 8000, while the sum is 31.

The square root of 55885 is about 236.4000846024. The cubic root of 55885 is about 38.2324167692.

The spelling of 55885 in words is "fifty-five thousand, eight hundred eighty-five".