520500312 has 96 divisors (see below), whose sum is σ = 1471981680. Its totient is φ = 165991680.

The previous prime is 520500311. The next prime is 520500329. The reversal of 520500312 is 213005025.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520500311) 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 23 ways as a sum of consecutive naturals, for example, 160903 + ... + 164105.

Almost surely, 2^520500312 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 520500312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735990840).

520500312 is an abundant number, since it is smaller than the sum of its proper divisors (951481368).

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

520500312 is a wasteful number, since it uses less digits than its factorization.

520500312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3313 (or 3306 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 520500312 is about 22814.4759308646. The cubic root of 520500312 is about 804.4029687100.

Adding to 520500312 its reverse (213005025), we get a palindrome (733505337).

The spelling of 520500312 in words is "five hundred twenty million, five hundred thousand, three hundred twelve".