520971172 has 12 divisors (see below), whose sum is σ = 913575040. Its totient is φ = 259949736.

The previous prime is 520971169. The next prime is 520971173. The reversal of 520971172 is 271179025.

It is not an unprimeable number, because it can be changed into a prime (520971173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131772 + ... + 135667.

Almost surely, 2^520971172 is an apocalyptic number.

It is an amenable number.

520971172 is a deficient number, since it is larger than the sum of its proper divisors (392603868).

520971172 is a wasteful number, since it uses less digits than its factorization.

520971172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267930 (or 267928 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 520971172 is about 22824.7929234856. The cubic root of 520971172 is about 804.6454578546.

The spelling of 520971172 in words is "five hundred twenty million, nine hundred seventy-one thousand, one hundred seventy-two".