6549005 has 4 divisors (see below), whose sum is σ = 7858812. Its totient is φ = 5239200.

The previous prime is 6548999. The next prime is 6549017. The reversal of 6549005 is 5009456.

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 4748041 + 1800964 = 2179^2 + 1342^2 .

It is not a de Polignac number, because 6549005 - 2⁴ = 6548989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 654896 + ... + 654905.

It is an arithmetic number, because the mean of its divisors is an integer number (1964703).

Almost surely, 2^6549005 is an apocalyptic number.

It is an amenable number.

6549005 is a deficient number, since it is larger than the sum of its proper divisors (1309807).

6549005 is a wasteful number, since it uses less digits than its factorization.

6549005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309806.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 6549005 is about 2559.1023816956. The cubic root of 6549005 is about 187.0933884915.

The spelling of 6549005 in words is "six million, five hundred forty-nine thousand, five".