54543 has 4 divisors (see below), whose sum is σ = 72728. Its totient is φ = 36360.

The previous prime is 54541. The next prime is 54547. The reversal of 54543 is 34545.

It is a happy number.

54543 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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

It is not a de Polignac number, because 54543 - 2¹ = 54541 is a prime.

It is a D-number.

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

It is a Duffinian number.

54543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54541) 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, 9088 + ... + 9093.

It is an arithmetic number, because the mean of its divisors is an integer number (18182).

2⁵⁴⁵⁴³ is an apocalyptic number.

54543 is a deficient number, since it is larger than the sum of its proper divisors (18185).

54543 is a wasteful number, since it uses less digits than its factorization.

54543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18184.

The product of its digits is 1200, while the sum is 21.

The square root of 54543 is about 233.5444283215. The cubic root of 54543 is about 37.9239012615.

The spelling of 54543 in words is "fifty-four thousand, five hundred forty-three".