6550565 has 12 divisors (see below), whose sum is σ = 9144396. Its totient is φ = 4491648.

The previous prime is 6550553. The next prime is 6550631. The reversal of 6550565 is 5650556.

6550565 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 2 ways, for example, as 3389281 + 3161284 = 1841^2 + 1778^2 .

It is not a de Polignac number, because 6550565 - 2⁶ = 6550501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13124 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (762033).

Almost surely, 2^6550565 is an apocalyptic number.

It is an amenable number.

6550565 is a deficient number, since it is larger than the sum of its proper divisors (2593831).

6550565 is a wasteful number, since it uses less digits than its factorization.

6550565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26756 (or 26749 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 6550565 is about 2559.4071579176. The cubic root of 6550565 is about 187.1082427843.

Subtracting from 6550565 its reverse (5650556), we obtain a palindrome (900009).

The spelling of 6550565 in words is "six million, five hundred fifty thousand, five hundred sixty-five".