54459 has 8 divisors (see below), whose sum is σ = 80720. Its totient is φ = 36288.

The previous prime is 54449. The next prime is 54469. The reversal of 54459 is 95445.

It is an interprime number because it is at equal distance from previous prime (54449) and next prime (54469).

It is not a de Polignac number, because 54459 - 2⁴ = 54443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2017 = 54459 / (5 + 4 + 4 + 5 + 9).

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982 + ... + 1035.

It is an arithmetic number, because the mean of its divisors is an integer number (10090).

2⁵⁴⁴⁵⁹ is an apocalyptic number.

54459 is a deficient number, since it is larger than the sum of its proper divisors (26261).

54459 is a wasteful number, since it uses less digits than its factorization.

54459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026 (or 2020 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 54459 is about 233.3645217251. The cubic root of 54459 is about 37.9044227799.

The spelling of 54459 in words is "fifty-four thousand, four hundred fifty-nine".