549552 has 30 divisors (see below), whose sum is σ = 1433068. Its totient is φ = 181472.

The previous prime is 549551. The next prime is 549553. The reversal of 549552 is 255945.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (549551) and next prime (549553).

It is a d-powerful number, because it can be written as 5 + 4⁹ + 5⁷ + 9² + 5⁷ + 2¹⁷ .

Its product of digits (9000) is a multiple of the sum of its prime factors (225).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549552.

It is not an unprimeable number, because it can be changed into a prime (549551) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5083 + ... + 5189.

2⁵⁴⁹⁵⁵² 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 549552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716534).

549552 is an abundant number, since it is smaller than the sum of its proper divisors (883516).

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

549552 is a wasteful number, since it uses less digits than its factorization.

549552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 112 counting only the distinct ones).

The product of its digits is 9000, while the sum is 30.

The square root of 549552 is about 741.3177456395. The cubic root of 549552 is about 81.9098752034.

The spelling of 549552 in words is "five hundred forty-nine thousand, five hundred fifty-two".