550885 has 8 divisors (see below), whose sum is σ = 700056. Its totient is φ = 414720.

The previous prime is 550861. The next prime is 550903. The reversal of 550885 is 588055.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 256036 + 294849 = 506^2 + 543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 550885 - 2⁷ = 550757 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3156 + ... + 3325.

It is an arithmetic number, because the mean of its divisors is an integer number (87507).

2⁵⁵⁰⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

550885 is a deficient number, since it is larger than the sum of its proper divisors (149171).

550885 is a wasteful number, since it uses less digits than its factorization.

550885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 550885 is about 742.2162757579. The cubic root of 550885 is about 81.9760489240.

The spelling of 550885 in words is "five hundred fifty thousand, eight hundred eighty-five".