54915 has 16 divisors (see below), whose sum is σ = 100608. Its totient is φ = 25056.

The previous prime is 54907. The next prime is 54917. The reversal of 54915 is 51945.

54915 = 56² + 57² + ... + 69².

54915 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54915 - 2³ = 54907 is a prime.

It is an Ulam number.

54915 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (54917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157 + ... + 366.

It is an arithmetic number, because the mean of its divisors is an integer number (6288).

2⁵⁴⁹¹⁵ is an apocalyptic number.

54915 is a deficient number, since it is larger than the sum of its proper divisors (45693).

54915 is a wasteful number, since it uses less digits than its factorization.

54915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538.

The product of its digits is 900, while the sum is 24.

The square root of 54915 is about 234.3394973111. The cubic root of 54915 is about 38.0099235394.

It can be divided in two parts, 54 and 915, that added together give a palindrome (969).

The spelling of 54915 in words is "fifty-four thousand, nine hundred fifteen".