54685 has 4 divisors (see below), whose sum is σ = 65628. Its totient is φ = 43744.

The previous prime is 54679. The next prime is 54709. The reversal of 54685 is 58645.

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 38809 + 15876 = 197^2 + 126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54685 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464 + ... + 5473.

It is an arithmetic number, because the mean of its divisors is an integer number (16407).

2⁵⁴⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

54685 is a deficient number, since it is larger than the sum of its proper divisors (10943).

54685 is a wasteful number, since it uses less digits than its factorization.

54685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10942.

The product of its digits is 4800, while the sum is 28.

The square root of 54685 is about 233.8482413874. The cubic root of 54685 is about 37.9567837417.

The spelling of 54685 in words is "fifty-four thousand, six hundred eighty-five".