522543 has 16 divisors (see below), whose sum is σ = 806400. Its totient is φ = 294816.

The previous prime is 522541. The next prime is 522553. The reversal of 522543 is 345225.

It is not a de Polignac number, because 522543 - 2¹ = 522541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

522543 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3046 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2⁵²²⁵⁴³ is an apocalyptic number.

522543 is a deficient number, since it is larger than the sum of its proper divisors (283857).

522543 is a wasteful number, since it uses less digits than its factorization.

522543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

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

The square root of 522543 is about 722.8713578501. The cubic root of 522543 is about 80.5453880328.

Adding to 522543 its reverse (345225), we get a palindrome (867768).

The spelling of 522543 in words is "five hundred twenty-two thousand, five hundred forty-three".