520215332 has 24 divisors (see below), whose sum is σ = 1120464576. Its totient is φ = 205799328.

The previous prime is 520215313. The next prime is 520215337. The reversal of 520215332 is 233512025.

It is a junction number, because it is equal to n+sod(n) for n = 520215298 and 520215307.

It is not an unprimeable number, because it can be changed into a prime (520215337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714218 + ... + 714945.

It is an arithmetic number, because the mean of its divisors is an integer number (46686024).

Almost surely, 2^520215332 is an apocalyptic number.

520215332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520215332 is an abundant number, since it is smaller than the sum of its proper divisors (600249244).

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

520215332 is a wasteful number, since it uses less digits than its factorization.

520215332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429187 (or 1429185 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 520215332 is about 22808.2294797295. The cubic root of 520215332 is about 804.2561352356.

Adding to 520215332 its reverse (233512025), we get a palindrome (753727357).

The spelling of 520215332 in words is "five hundred twenty million, two hundred fifteen thousand, three hundred thirty-two".