520611 has 16 divisors (see below), whose sum is σ = 854784. Its totient is φ = 274464.

The previous prime is 520609. The next prime is 520621. The reversal of 520611 is 116025.

It is not a de Polignac number, because 520611 - 2¹ = 520609 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 520611.

It is not an unprimeable number, because it can be changed into a prime (520621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681 + ... + 1226.

It is an arithmetic number, because the mean of its divisors is an integer number (53424).

2⁵²⁰⁶¹¹ is an apocalyptic number.

520611 is a deficient number, since it is larger than the sum of its proper divisors (334173).

520611 is a wasteful number, since it uses less digits than its factorization.

520611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 520611 is about 721.5337829929. The cubic root of 520611 is about 80.4459985291.

Adding to 520611 its reverse (116025), we get a palindrome (636636).

The spelling of 520611 in words is "five hundred twenty thousand, six hundred eleven".