520520319 has 12 divisors (see below), whose sum is σ = 820213992. Its totient is φ = 315466800.

The previous prime is 520520317. The next prime is 520520359. The reversal of 520520319 is 913025025.

It is not a de Polignac number, because 520520319 - 2¹ = 520520317 is a prime.

It is a super-2 number, since 2×520520319² = 541882804983723522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520520292 and 520520301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520520317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2628792 + ... + 2628989.

It is an arithmetic number, because the mean of its divisors is an integer number (68351166).

Almost surely, 2^520520319 is an apocalyptic number.

520520319 is a deficient number, since it is larger than the sum of its proper divisors (299693673).

520520319 is a wasteful number, since it uses less digits than its factorization.

520520319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257798 (or 5257795 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 520520319 is about 22814.9143982615. The cubic root of 520520319 is about 804.4132751297.

The spelling of 520520319 in words is "five hundred twenty million, five hundred twenty thousand, three hundred nineteen".