54515 has 4 divisors (see below), whose sum is σ = 65424. Its totient is φ = 43608.

The previous prime is 54503. The next prime is 54517. The reversal of 54515 is 51545.

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

It is a cyclic number.

It is not a de Polignac number, because 54515 - 2⁴ = 54499 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (54517) 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, 5447 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (16356).

2⁵⁴⁵¹⁵ is an apocalyptic number.

54515 is a deficient number, since it is larger than the sum of its proper divisors (10909).

54515 is a wasteful number, since it uses less digits than its factorization.

54515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10908.

The product of its digits is 500, while the sum is 20.

The square root of 54515 is about 233.4844748586. The cubic root of 54515 is about 37.9174106578.

The spelling of 54515 in words is "fifty-four thousand, five hundred fifteen".