522323712 has 216 divisors, whose sum is σ = 1591769088. Its totient is φ = 164505600.

The previous prime is 522323707. The next prime is 522323713. The reversal of 522323712 is 217323225.

It is a happy number.

Its product of digits (5040) is a multiple of the sum of its prime divisors (210).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522323713) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5071053 + ... + 5071155.

Almost surely, 2^522323712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522323712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795884544).

522323712 is an abundant number, since it is smaller than the sum of its proper divisors (1069445376).

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

522323712 is a wasteful number, since it uses less digits than its factorization.

522323712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 210 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 522323712 is about 22854.4024642956. The cubic root of 522323712 is about 805.3411935356.

Adding to 522323712 its reverse (217323225), we get a palindrome (739646937).

The spelling of 522323712 in words is "five hundred twenty-two million, three hundred twenty-three thousand, seven hundred twelve".