6520229 has 8 divisors (see below), whose sum is σ = 6707160. Its totient is φ = 6336000.

The previous prime is 6520223. The next prime is 6520253. The reversal of 6520229 is 9220256.

6520229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1221025 + 5299204 = 1105^2 + 2302^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6520229 - 2⁸ = 6519973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6520198 and 6520207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4829 + ... + 6029.

It is an arithmetic number, because the mean of its divisors is an integer number (838395).

Almost surely, 2^6520229 is an apocalyptic number.

It is an amenable number.

6520229 is a deficient number, since it is larger than the sum of its proper divisors (186931).

6520229 is a wasteful number, since it uses less digits than its factorization.

6520229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 6520229 is about 2553.4739082278. The cubic root of 6520229 is about 186.8189598297.

The spelling of 6520229 in words is "six million, five hundred twenty thousand, two hundred twenty-nine".