54185 has 4 divisors (see below), whose sum is σ = 65028. Its totient is φ = 43344.

The previous prime is 54181. The next prime is 54193. The reversal of 54185 is 58145.

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 15376 + 38809 = 124^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 54185 - 2² = 54181 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 54185.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 54185.

It is not an unprimeable number, because it can be changed into a prime (54181) 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, 5414 + ... + 5423.

It is an arithmetic number, because the mean of its divisors is an integer number (16257).

2⁵⁴¹⁸⁵ is an apocalyptic number.

It is an amenable number.

54185 is a deficient number, since it is larger than the sum of its proper divisors (10843).

54185 is a wasteful number, since it uses less digits than its factorization.

54185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842.

The product of its digits is 800, while the sum is 23.

The square root of 54185 is about 232.7767170488. The cubic root of 54185 is about 37.8407462602.

It can be divided in two parts, 541 and 85, that added together give a palindrome (626).

The spelling of 54185 in words is "fifty-four thousand, one hundred eighty-five".