54569 has 4 divisors (see below), whose sum is σ = 55044. Its totient is φ = 54096.

The previous prime is 54563. The next prime is 54577. The reversal of 54569 is 96545.

54569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 96545 = 5 ⋅19309.

It can be written as a sum of positive squares in 2 ways, for example, as 34969 + 19600 = 187^2 + 140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54569 is a prime.

It is a super-2 number, since 2×54569² = 5955551522, which contains 22 as substring.

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

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (54563) 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, 59 + ... + 335.

It is an arithmetic number, because the mean of its divisors is an integer number (13761).

2⁵⁴⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

54569 is a deficient number, since it is larger than the sum of its proper divisors (475).

54569 is a wasteful number, since it uses less digits than its factorization.

54569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474.

The product of its digits is 5400, while the sum is 29.

The square root of 54569 is about 233.6000856164. The cubic root of 54569 is about 37.9299262619.

The spelling of 54569 in words is "fifty-four thousand, five hundred sixty-nine".