550291 has 8 divisors (see below), whose sum is σ = 634880. Its totient is φ = 467208.

The previous prime is 550289. The next prime is 550309. The reversal of 550291 is 192055.

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

It is not a de Polignac number, because 550291 - 2¹ = 550289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580 + ... + 1198.

It is an arithmetic number, because the mean of its divisors is an integer number (79360).

2⁵⁵⁰²⁹¹ is an apocalyptic number.

550291 is a deficient number, since it is larger than the sum of its proper divisors (84589).

550291 is a wasteful number, since it uses less digits than its factorization.

550291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 550291 is about 741.8160149255. The cubic root of 550291 is about 81.9465743602.

It can be divided in two parts, 550 and 291, that added together give a square (841 = 29²).

The spelling of 550291 in words is "five hundred fifty thousand, two hundred ninety-one".