550287 has 16 divisors (see below), whose sum is σ = 828000. Its totient is φ = 361152.

The previous prime is 550283. The next prime is 550289. The reversal of 550287 is 782055.

It is a happy number.

550287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550287 - 2² = 550283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 550287.

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 550287.

It is not an unprimeable number, because it can be changed into a prime (550283) 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, 2289 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (51750).

2⁵⁵⁰²⁸⁷ is an apocalyptic number.

550287 is a deficient number, since it is larger than the sum of its proper divisors (277713).

550287 is a wasteful number, since it uses less digits than its factorization.

550287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 550287 is about 741.8133188343. The cubic root of 550287 is about 81.9463758065.

The spelling of 550287 in words is "five hundred fifty thousand, two hundred eighty-seven".