520215232 has 28 divisors (see below), whose sum is σ = 1093028040. Its totient is φ = 244806656.

The previous prime is 520215229. The next prime is 520215233. The reversal of 520215232 is 232512025.

It is not an unprimeable number, because it can be changed into a prime (520215233) 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 3 ways as a sum of consecutive naturals, for example, 237982 + ... + 240157.

Almost surely, 2^520215232 is an apocalyptic number.

It is an amenable number.

520215232 is an abundant number, since it is smaller than the sum of its proper divisors (572812808).

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

520215232 is a wasteful number, since it uses less digits than its factorization.

520215232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478168 (or 478158 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 520215232 is about 22808.2272875382. The cubic root of 520215232 is about 804.2560837020.

Adding to 520215232 its reverse (232512025), we get a palindrome (752727257).

The spelling of 520215232 in words is "five hundred twenty million, two hundred fifteen thousand, two hundred thirty-two".