549544 has 16 divisors (see below), whose sum is σ = 1045620. Its totient is φ = 270720.

The previous prime is 549533. The next prime is 549547. The reversal of 549544 is 445945.

It can be written as a sum of positive squares in 2 ways, for example, as 544644 + 4900 = 738^2 + 70^2 .

It is not an unprimeable number, because it can be changed into a prime (549547) by changing a digit.

549544 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114 + ... + 1054.

2⁵⁴⁹⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

549544 is a deficient number, since it is larger than the sum of its proper divisors (496076).

549544 is a wasteful number, since it uses less digits than its factorization.

549544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1016 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 549544 is about 741.3123498229. The cubic root of 549544 is about 81.9094777389.

The spelling of 549544 in words is "five hundred forty-nine thousand, five hundred forty-four".