549549 has 48 divisors (see below), whose sum is σ = 1083264. Its totient is φ = 259200.

The previous prime is 549547. The next prime is 549551. The reversal of 549549 is 945945.

It is an interprime number because it is at equal distance from previous prime (549547) and next prime (549551).

It is not a de Polignac number, because 549549 - 2¹ = 549547 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549549.

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

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8979 + ... + 9039.

It is an arithmetic number, because the mean of its divisors is an integer number (22568).

2⁵⁴⁹⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

549549 is a deficient number, since it is larger than the sum of its proper divisors (533715).

549549 is a wasteful number, since it uses less digits than its factorization.

549549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 95 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 549549 is about 741.3157222129. The cubic root of 549549 is about 81.9097261546.

The spelling of 549549 in words is "five hundred forty-nine thousand, five hundred forty-nine".