522331 has 4 divisors (see below), whose sum is σ = 524664. Its totient is φ = 520000.

The previous prime is 522323. The next prime is 522337. The reversal of 522331 is 133225.

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 522331 - 2³ = 522323 is a prime.

It is a super-2 number, since 2×522331² = 545659347122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790 + ... + 1291.

It is an arithmetic number, because the mean of its divisors is an integer number (131166).

2⁵²²³³¹ is an apocalyptic number.

522331 is a deficient number, since it is larger than the sum of its proper divisors (2333).

522331 is a wasteful number, since it uses less digits than its factorization.

522331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332.

The product of its digits is 180, while the sum is 16.

The square root of 522331 is about 722.7247055415. The cubic root of 522331 is about 80.5344939169.

Adding to 522331 its reverse (133225), we get a palindrome (655556).

The spelling of 522331 in words is "five hundred twenty-two thousand, three hundred thirty-one".