520688067 has 16 divisors (see below), whose sum is σ = 701665440. Its totient is φ = 343429632.

The previous prime is 520688057. The next prime is 520688071. The reversal of 520688067 is 760886025.

It is a de Polignac number, because none of the positive numbers 2^k-520688067 is a prime.

It is a super-2 number, since 2×520688067² = 542232126232392978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520688017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255609 + ... + 257637.

It is an arithmetic number, because the mean of its divisors is an integer number (43854090).

Almost surely, 2^520688067 is an apocalyptic number.

520688067 is a deficient number, since it is larger than the sum of its proper divisors (180977373).

520688067 is a wasteful number, since it uses less digits than its factorization.

520688067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 520688067 is about 22818.5903815288. The cubic root of 520688067 is about 804.4996785611.

The spelling of 520688067 in words is "five hundred twenty million, six hundred eighty-eight thousand, sixty-seven".