522531012 has 24 divisors (see below), whose sum is σ = 1247594656. Its totient is φ = 170126208.

The previous prime is 522530999. The next prime is 522531013. The reversal of 522531012 is 210135225.

It is a self number, because there is not a number n which added to its sum of digits gives 522531012.

It is not an unprimeable number, because it can be changed into a prime (522531013) 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 7 ways as a sum of consecutive naturals, for example, 505813 + ... + 506844.

Almost surely, 2^522531012 is an apocalyptic number.

It is an amenable number.

522531012 is an abundant number, since it is smaller than the sum of its proper divisors (725063644).

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

522531012 is a wasteful number, since it uses less digits than its factorization.

522531012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012707 (or 1012705 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 522531012 is about 22858.9372456376. The cubic root of 522531012 is about 805.4477207999.

Adding to 522531012 its reverse (210135225), we get a palindrome (732666237).

The spelling of 522531012 in words is "five hundred twenty-two million, five hundred thirty-one thousand, twelve".