550849 has 4 divisors (see below), whose sum is σ = 593236. Its totient is φ = 508464.

The previous prime is 550843. The next prime is 550859. The reversal of 550849 is 948055.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53824 + 497025 = 232^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 550849 - 2³ = 550841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 550849.

It is not an unprimeable number, because it can be changed into a prime (550841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21174 + ... + 21199.

It is an arithmetic number, because the mean of its divisors is an integer number (148309).

2⁵⁵⁰⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

550849 is a deficient number, since it is larger than the sum of its proper divisors (42387).

550849 is a wasteful number, since it uses less digits than its factorization.

550849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42386.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 550849 is about 742.1920236704. The cubic root of 550849 is about 81.9742631901.

The spelling of 550849 in words is "five hundred fifty thousand, eight hundred forty-nine".