549605 has 16 divisors (see below), whose sum is σ = 774144. Its totient is φ = 366720.

The previous prime is 549589. The next prime is 549607. The reversal of 549605 is 506945.

It is not a de Polignac number, because 549605 - 2⁴ = 549589 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 549605.

It is not an unprimeable number, because it can be changed into a prime (549607) 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, 1244 + ... + 1626.

It is an arithmetic number, because the mean of its divisors is an integer number (48384).

2⁵⁴⁹⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

549605 is a deficient number, since it is larger than the sum of its proper divisors (224539).

549605 is a wasteful number, since it uses less digits than its factorization.

549605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

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

The square root of 549605 is about 741.3534919322. The cubic root of 549605 is about 81.9125083080.

The spelling of 549605 in words is "five hundred forty-nine thousand, six hundred five".