520285111 has 2 divisors, whose sum is σ = 520285112. Its totient is φ = 520285110.

The previous prime is 520285063. The next prime is 520285163. The reversal of 520285111 is 111582025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520285111 - 2¹³ = 520276919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520285211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260142555 + 260142556.

It is an arithmetic number, because the mean of its divisors is an integer number (260142556).

Almost surely, 2^520285111 is an apocalyptic number.

520285111 is a deficient number, since it is larger than the sum of its proper divisors (1).

520285111 is an equidigital number, since it uses as much as digits as its factorization.

520285111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 520285111 is about 22809.7591175356. The cubic root of 520285111 is about 804.2920932171.

The spelling of 520285111 in words is "five hundred twenty million, two hundred eighty-five thousand, one hundred eleven".