543520 has 48 divisors (see below), whose sum is σ = 1330560. Its totient is φ = 209664.

The previous prime is 543509. The next prime is 543539. The reversal of 543520 is 25345.

It is a happy number.

It is an unprimeable number.

543520 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6841 + ... + 6919.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2⁵⁴³⁵²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665280).

543520 is an abundant number, since it is smaller than the sum of its proper divisors (787040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

543520 is a wasteful number, since it uses less digits than its factorization.

543520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 543520 is about 737.2380890866. The cubic root of 543520 is about 81.6090852373.

Adding to 543520 its reverse (25345), we get a palindrome (568865).

The spelling of 543520 in words is "five hundred forty-three thousand, five hundred twenty".