522012 has 24 divisors (see below), whose sum is σ = 1248912. Its totient is φ = 169600.

The previous prime is 521999. The next prime is 522017. The reversal of 522012 is 210225.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522017) by changing a digit.

522012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 39 + ... + 1022.

It is an arithmetic number, because the mean of its divisors is an integer number (52038).

2⁵²²⁰¹² is an apocalyptic number.

It is an amenable number.

522012 is an abundant number, since it is smaller than the sum of its proper divisors (726900).

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

522012 is a wasteful number, since it uses less digits than its factorization.

522012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 522012 is about 722.5039792278. The cubic root of 522012 is about 80.5180957994.

Adding to 522012 its reverse (210225), we get a palindrome (732237).

The spelling of 522012 in words is "five hundred twenty-two thousand, twelve".