543523 has 8 divisors (see below), whose sum is σ = 570240. Its totient is φ = 517440.

The previous prime is 543509. The next prime is 543539. The reversal of 543523 is 325345.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543523 is a prime.

It is a Duffinian number.

543523 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 543494 and 543503.

It is not an unprimeable number, because it can be changed into a prime (543503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2661 + ... + 2857.

It is an arithmetic number, because the mean of its divisors is an integer number (71280).

2⁵⁴³⁵²³ is an apocalyptic number.

543523 is a deficient number, since it is larger than the sum of its proper divisors (26717).

543523 is a wasteful number, since it uses less digits than its factorization.

543523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 1800, while the sum is 22.

The square root of 543523 is about 737.2401237046. The cubic root of 543523 is about 81.6092353862.

Adding to 543523 its reverse (325345), we get a palindrome (868868).

The spelling of 543523 in words is "five hundred forty-three thousand, five hundred twenty-three".