550240 has 48 divisors (see below), whose sum is σ = 1375920. Its totient is φ = 207360.

The previous prime is 550213. The next prime is 550241. The reversal of 550240 is 42055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550241) 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 7 ways as a sum of consecutive naturals, for example, 2950 + ... + 3130.

It is an arithmetic number, because the mean of its divisors is an integer number (28665).

2⁵⁵⁰²⁴⁰ 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 550240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687960).

550240 is an abundant number, since it is smaller than the sum of its proper divisors (825680).

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

550240 is a wasteful number, since it uses less digits than its factorization.

550240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 550240 is about 741.7816390286. The cubic root of 550240 is about 81.9440427273.

Adding to 550240 its reverse (42055), we get a palindrome (592295).

The spelling of 550240 in words is "five hundred fifty thousand, two hundred forty".