54565 has 8 divisors (see below), whose sum is σ = 74880. Its totient is φ = 37392.

The previous prime is 54563. The next prime is 54577. The reversal of 54565 is 56545.

54565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

54565 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54565 - 2¹ = 54563 is a prime.

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

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54563) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745 + ... + 814.

It is an arithmetic number, because the mean of its divisors is an integer number (9360).

2⁵⁴⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

54565 is a deficient number, since it is larger than the sum of its proper divisors (20315).

54565 is a wasteful number, since it uses less digits than its factorization.

54565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571.

The product of its digits is 3000, while the sum is 25.

The square root of 54565 is about 233.5915238188. The cubic root of 54565 is about 37.9289994633.

The spelling of 54565 in words is "fifty-four thousand, five hundred sixty-five".