549056 has 28 divisors (see below), whose sum is σ = 1139952. Its totient is φ = 261888.

The previous prime is 549037. The next prime is 549071. The reversal of 549056 is 650945.

It is a super-2 number, since 2×549056² = 602924982272, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

549056 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 (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286 + ... + 1658.

2⁵⁴⁹⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569976).

549056 is an abundant number, since it is smaller than the sum of its proper divisors (590896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549056 is a wasteful number, since it uses less digits than its factorization.

549056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 398 counting only the distinct ones).

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

The square root of 549056 is about 740.9831307122. The cubic root of 549056 is about 81.8852251084.

The spelling of 549056 in words is "five hundred forty-nine thousand, fifty-six".