55085 has 8 divisors (see below), whose sum is σ = 69120. Its totient is φ = 42064.

The previous prime is 55079. The next prime is 55103. The reversal of 55085 is 58055.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55085 - 2⁶ = 55021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 55085.

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 55085.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 354.

It is an arithmetic number, because the mean of its divisors is an integer number (8640).

2⁵⁵⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

55085 is a deficient number, since it is larger than the sum of its proper divisors (14035).

55085 is a wasteful number, since it uses less digits than its factorization.

55085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 55085 is about 234.7019386371. The cubic root of 55085 is about 38.0491054912.

It can be divided in two parts, 5 and 5085, that multiplied together give a triangular number (25425 = T₂₂₅).

The spelling of 55085 in words is "fifty-five thousand, eighty-five".