550548 has 36 divisors (see below), whose sum is σ = 1429428. Its totient is φ = 178560.

The previous prime is 550541. The next prime is 550553. The reversal of 550548 is 845055.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 412164 = 372^2 + 642^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 550548.

It is not an unprimeable number, because it can be changed into a prime (550541) by changing a digit.

550548 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1290 + ... + 1662.

2⁵⁵⁰⁵⁴⁸ 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 550548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714714).

550548 is an abundant number, since it is smaller than the sum of its proper divisors (878880).

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

550548 is a wasteful number, since it uses less digits than its factorization.

550548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 550548 is about 741.9892182505. The cubic root of 550548 is about 81.9593294249.

The spelling of 550548 in words is "five hundred fifty thousand, five hundred forty-eight".