54665 has 12 divisors (see below), whose sum is σ = 73164. Its totient is φ = 38976.

The previous prime is 54647. The next prime is 54667. The reversal of 54665 is 56645.

54665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3136 + 51529 = 56^2 + 227^2 .

It is not a de Polignac number, because 54665 - 2⁶ = 54601 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1871 + ... + 1899.

It is an arithmetic number, because the mean of its divisors is an integer number (6097).

2⁵⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

54665 is a deficient number, since it is larger than the sum of its proper divisors (18499).

54665 is a wasteful number, since it uses less digits than its factorization.

54665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 47 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 54665 is about 233.8054747007. The cubic root of 54665 is about 37.9521558533.

The spelling of 54665 in words is "fifty-four thousand, six hundred sixty-five".