550841 has 2 divisors, whose sum is σ = 550842. Its totient is φ = 550840.

The previous prime is 550831. The next prime is 550843. The reversal of 550841 is 148055.

Added to its reverse (148055) it gives a square (698896 = 836²).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495616 + 55225 = 704^2 + 235^2 .

It is a cyclic number.

It is not a de Polignac number, because 550841 - 2¹⁰ = 549817 is a prime.

Together with 550843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (550843) by changing a digit.

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 as a sum of consecutive naturals, namely, 275420 + 275421.

It is an arithmetic number, because the mean of its divisors is an integer number (275421).

2⁵⁵⁰⁸⁴¹ is an apocalyptic number.

It is an amenable number.

550841 is a deficient number, since it is larger than the sum of its proper divisors (1).

550841 is an equidigital number, since it uses as much as digits as its factorization.

550841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 550841 is about 742.1866342100. The cubic root of 550841 is about 81.9738663498.

Adding to 550841 its reverse (148055), we get a palindrome (698896).

The spelling of 550841 in words is "five hundred fifty thousand, eight hundred forty-one".