549500 has 48 divisors (see below), whose sum is σ = 1380288. Its totient is φ = 187200.

The previous prime is 549481. The next prime is 549503. The reversal of 549500 is 5945.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549503) 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, 3422 + ... + 3578.

It is an arithmetic number, because the mean of its divisors is an integer number (28756).

2⁵⁴⁹⁵⁰⁰ is an apocalyptic number.

549500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690144).

549500 is an abundant number, since it is smaller than the sum of its proper divisors (830788).

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

549500 is a wasteful number, since it uses less digits than its factorization.

549500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 549500 is about 741.2826721299. The cubic root of 549500 is about 81.9072916154.

The spelling of 549500 in words is "five hundred forty-nine thousand, five hundred".