543559 has 4 divisors (see below), whose sum is σ = 567216. Its totient is φ = 519904.

The previous prime is 543553. The next prime is 543593. The reversal of 543559 is 955345.

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

It is a cyclic number.

It is not a de Polignac number, because 543559 - 2³ = 543551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 543559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543551) 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, 11794 + ... + 11839.

It is an arithmetic number, because the mean of its divisors is an integer number (141804).

2⁵⁴³⁵⁵⁹ is an apocalyptic number.

543559 is a deficient number, since it is larger than the sum of its proper divisors (23657).

543559 is a wasteful number, since it uses less digits than its factorization.

543559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23656.

The product of its digits is 13500, while the sum is 31.

The square root of 543559 is about 737.2645386834. The cubic root of 543559 is about 81.6110371300.

The spelling of 543559 in words is "five hundred forty-three thousand, five hundred fifty-nine".