549082209 has 16 divisors (see below), whose sum is σ = 807657984. Its totient is φ = 329654400.

The previous prime is 549082189. The next prime is 549082213. The reversal of 549082209 is 902280945.

It is not a de Polignac number, because 549082209 - 2⁷ = 549082081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (549082309) 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, 170097 + ... + 173294.

It is an arithmetic number, because the mean of its divisors is an integer number (50478624).

Almost surely, 2^549082209 is an apocalyptic number.

It is an amenable number.

549082209 is a deficient number, since it is larger than the sum of its proper divisors (258575775).

549082209 is a wasteful number, since it uses less digits than its factorization.

549082209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343448.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 549082209 is about 23432.5032593618. The cubic root of 549082209 is about 818.8652800870.

The spelling of 549082209 in words is "five hundred forty-nine million, eighty-two thousand, two hundred nine".