6520965 has 16 divisors (see below), whose sum is σ = 11382336. Its totient is φ = 3161600.

The previous prime is 6520963. The next prime is 6520973. The reversal of 6520965 is 5690256.

It is not a de Polignac number, because 6520965 - 2¹ = 6520963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520963) 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, 19596 + ... + 19925.

It is an arithmetic number, because the mean of its divisors is an integer number (711396).

Almost surely, 2^6520965 is an apocalyptic number.

It is an amenable number.

6520965 is a deficient number, since it is larger than the sum of its proper divisors (4861371).

6520965 is a wasteful number, since it uses less digits than its factorization.

6520965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39540.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 6520965 is about 2553.6180215529. The cubic root of 6520965 is about 186.8259889070.

Adding to 6520965 its reverse (5690256), we get a palindrome (12211221).

The spelling of 6520965 in words is "six million, five hundred twenty thousand, nine hundred sixty-five".