6549855 has 16 divisors (see below), whose sum is σ = 11286240. Its totient is φ = 3224448.

The previous prime is 6549839. The next prime is 6549857. The reversal of 6549855 is 5589456.

It is not a de Polignac number, because 6549855 - 2⁴ = 6549839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6549857) 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, 16600 + ... + 16989.

It is an arithmetic number, because the mean of its divisors is an integer number (705390).

Almost surely, 2^6549855 is an apocalyptic number.

6549855 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6549855 is a deficient number, since it is larger than the sum of its proper divisors (4736385).

6549855 is a wasteful number, since it uses less digits than its factorization.

6549855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33610.

The product of its digits is 216000, while the sum is 42.

The square root of 6549855 is about 2559.2684501631. The cubic root of 6549855 is about 187.1014824691.

The spelling of 6549855 in words is "six million, five hundred forty-nine thousand, eight hundred fifty-five".