520685167 has 2 divisors, whose sum is σ = 520685168. Its totient is φ = 520685166.

The previous prime is 520685149. The next prime is 520685171. The reversal of 520685167 is 761586025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520685167 - 2²⁷ = 386467439 is a prime.

It is a super-2 number, since 2×520685167² = 542226086267635778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520685107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260342583 + 260342584.

It is an arithmetic number, because the mean of its divisors is an integer number (260342584).

Almost surely, 2^520685167 is an apocalyptic number.

520685167 is a deficient number, since it is larger than the sum of its proper divisors (1).

520685167 is an equidigital number, since it uses as much as digits as its factorization.

520685167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 520685167 is about 22818.5268367614. The cubic root of 520685167 is about 804.4981849904.

The spelling of 520685167 in words is "five hundred twenty million, six hundred eighty-five thousand, one hundred sixty-seven".