522312 has 32 divisors (see below), whose sum is σ = 1492800. Its totient is φ = 149184.

The previous prime is 522289. The next prime is 522317. The reversal of 522312 is 213225.

It is a junction number, because it is equal to n+sod(n) for n = 522291 and 522300.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 522312.

It is not an unprimeable number, because it can be changed into a prime (522317) by changing a digit.

522312 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, 1387 + ... + 1722.

It is an arithmetic number, because the mean of its divisors is an integer number (46650).

2⁵²²³¹² is an apocalyptic number.

It is an amenable number.

522312 is an abundant number, since it is smaller than the sum of its proper divisors (970488).

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

522312 is a wasteful number, since it uses less digits than its factorization.

522312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125 (or 3121 counting only the distinct ones).

The product of its digits is 120, while the sum is 15.

The square root of 522312 is about 722.7115607211. The cubic root of 522312 is about 80.5335174135.

Adding to 522312 its reverse (213225), we get a palindrome (735537).

The spelling of 522312 in words is "five hundred twenty-two thousand, three hundred twelve".