550280 has 16 divisors (see below), whose sum is σ = 1238220. Its totient is φ = 220096.

The previous prime is 550279. The next prime is 550283. The reversal of 550280 is 82055.

It can be written as a sum of positive squares in 2 ways, for example, as 481636 + 68644 = 694^2 + 262^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550280.

It is not an unprimeable number, because it can be changed into a prime (550283) 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 3 ways as a sum of consecutive naturals, for example, 6839 + ... + 6918.

2⁵⁵⁰²⁸⁰ is an apocalyptic number.

It is an amenable number.

550280 is an abundant number, since it is smaller than the sum of its proper divisors (687940).

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

550280 is a wasteful number, since it uses less digits than its factorization.

550280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13768 (or 13764 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 550280 is about 741.8086006511. The cubic root of 550280 is about 81.9460283350.

The spelling of 550280 in words is "five hundred fifty thousand, two hundred eighty".