6551465 has 4 divisors (see below), whose sum is σ = 7861764. Its totient is φ = 5241168.

The previous prime is 6551429. The next prime is 6551497. The reversal of 6551465 is 5641556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4946176 + 1605289 = 2224^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 6551465 - 2¹² = 6547369 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655142 + ... + 655151.

It is an arithmetic number, because the mean of its divisors is an integer number (1965441).

Almost surely, 2^6551465 is an apocalyptic number.

It is an amenable number.

6551465 is a deficient number, since it is larger than the sum of its proper divisors (1310299).

6551465 is a wasteful number, since it uses less digits than its factorization.

6551465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310298.

The product of its digits is 18000, while the sum is 32.

The square root of 6551465 is about 2559.5829738455. The cubic root of 6551465 is about 187.1168114959.

Subtracting from 6551465 its reverse (5641556), we obtain a palindrome (909909).

The spelling of 6551465 in words is "six million, five hundred fifty-one thousand, four hundred sixty-five".