520831017 has 24 divisors (see below), whose sum is σ = 878082816. Its totient is φ = 291283776.

The previous prime is 520831013. The next prime is 520831027. The reversal of 520831017 is 710138025.

It is not a de Polignac number, because 520831017 - 2² = 520831013 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520831013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84988 + ... + 90909.

It is an arithmetic number, because the mean of its divisors is an integer number (36586784).

Almost surely, 2^520831017 is an apocalyptic number.

It is an amenable number.

520831017 is a deficient number, since it is larger than the sum of its proper divisors (357251799).

520831017 is a wasteful number, since it uses less digits than its factorization.

520831017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175957 (or 175954 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 520831017 is about 22821.7224810048. The cubic root of 520831017 is about 804.5732944255.

The spelling of 520831017 in words is "five hundred twenty million, eight hundred thirty-one thousand, seventeen".