520696785 has 48 divisors (see below), whose sum is σ = 989819136. Its totient is φ = 232952832.

The previous prime is 520696777. The next prime is 520696861. The reversal of 520696785 is 587696025.

It is a happy number.

It is not a de Polignac number, because 520696785 - 2³ = 520696777 is a prime.

It is a super-2 number, since 2×520696785² = 542250283818672450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27009 + ... + 42081.

It is an arithmetic number, because the mean of its divisors is an integer number (20621232).

Almost surely, 2^520696785 is an apocalyptic number.

It is an amenable number.

520696785 is a deficient number, since it is larger than the sum of its proper divisors (469122351).

520696785 is a wasteful number, since it uses less digits than its factorization.

520696785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15142 (or 15135 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 520696785 is about 22818.7814091813. The cubic root of 520696785 is about 804.5041685104.

The spelling of 520696785 in words is "five hundred twenty million, six hundred ninety-six thousand, seven hundred eighty-five".