520011 has 12 divisors (see below), whose sum is σ = 790920. Its totient is φ = 328320.

The previous prime is 519997. The next prime is 520019. The reversal of 520011 is 110025.

It is a happy number.

It is not a de Polignac number, because 520011 - 2⁶ = 519947 is a prime.

It is a super-2 number, since 2×520011² = 540822880242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 519975 and 520002.

It is not an unprimeable number, because it can be changed into a prime (520019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1350 + ... + 1691.

It is an arithmetic number, because the mean of its divisors is an integer number (65910).

2⁵²⁰⁰¹¹ is an apocalyptic number.

520011 is a deficient number, since it is larger than the sum of its proper divisors (270909).

520011 is a wasteful number, since it uses less digits than its factorization.

520011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066 (or 3063 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 520011 is about 721.1178821802. The cubic root of 520011 is about 80.4150821932.

Adding to 520011 its reverse (110025), we get a palindrome (630036).

The spelling of 520011 in words is "five hundred twenty thousand, eleven".