6520017 has 16 divisors (see below), whose sum is σ = 10368000. Its totient is φ = 3563472.

The previous prime is 6519991. The next prime is 6520057. The reversal of 6520017 is 7100256.

It is not a de Polignac number, because 6520017 - 2¹⁴ = 6503633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 6519975 and 6520002.

It is not an unprimeable number, because it can be changed into a prime (6520057) 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, 6267 + ... + 7232.

It is an arithmetic number, because the mean of its divisors is an integer number (648000).

Almost surely, 2^6520017 is an apocalyptic number.

It is an amenable number.

6520017 is a deficient number, since it is larger than the sum of its proper divisors (3847983).

6520017 is a wasteful number, since it uses less digits than its factorization.

6520017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13532.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 6520017 is about 2553.4323958155. The cubic root of 6520017 is about 186.8169350517.

The spelling of 6520017 in words is "six million, five hundred twenty thousand, seventeen".