520705312 has 48 divisors (see below), whose sum is σ = 1041677280. Its totient is φ = 256186368.

The previous prime is 520705271. The next prime is 520705319. The reversal of 520705312 is 213507025.

It is a super-2 number, since 2×520705312² = 542268043890034688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520705319) 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, 704239 + ... + 704977.

It is an arithmetic number, because the mean of its divisors is an integer number (21701610).

Almost surely, 2^520705312 is an apocalyptic number.

It is an amenable number.

520705312 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

520705312 is a wasteful number, since it uses less digits than its factorization.

520705312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 520705312 is about 22818.9682501203. The cubic root of 520705312 is about 804.5085600423.

The spelling of 520705312 in words is "five hundred twenty million, seven hundred five thousand, three hundred twelve".