5549609 has 4 divisors (see below), whose sum is σ = 5976516. Its totient is φ = 5122704.

The previous prime is 5549591. The next prime is 5549611. The reversal of 5549609 is 9069455.

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 3667225 + 1882384 = 1915^2 + 1372^2 .

It is a cyclic number.

It is not a de Polignac number, because 5549609 - 2¹² = 5545513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5549659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213434 + ... + 213459.

It is an arithmetic number, because the mean of its divisors is an integer number (1494129).

Almost surely, 2^5549609 is an apocalyptic number.

It is an amenable number.

5549609 is a deficient number, since it is larger than the sum of its proper divisors (426907).

5549609 is a wasteful number, since it uses less digits than its factorization.

5549609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426906.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 5549609 is about 2355.7608112879. The cubic root of 5549609 is about 177.0465473885.

The spelling of 5549609 in words is "five million, five hundred forty-nine thousand, six hundred nine".