6544455 has 16 divisors (see below), whose sum is σ = 11022720. Its totient is φ = 3306528.

The previous prime is 6544453. The next prime is 6544481. The reversal of 6544455 is 5544456.

6544455 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6544455 - 2¹ = 6544453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6544451) 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, 11197 + ... + 11766.

It is an arithmetic number, because the mean of its divisors is an integer number (688920).

Almost surely, 2^6544455 is an apocalyptic number.

6544455 is a deficient number, since it is larger than the sum of its proper divisors (4478265).

6544455 is a wasteful number, since it uses less digits than its factorization.

6544455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22990.

The product of its digits is 48000, while the sum is 33.

The square root of 6544455 is about 2558.2132436527. The cubic root of 6544455 is about 187.0500499926.

Subtracting from 6544455 its reverse (5544456), we obtain a palindrome (999999).

The spelling of 6544455 in words is "six million, five hundred forty-four thousand, four hundred fifty-five".