550541 has 2 divisors, whose sum is σ = 550542.
Its totient is φ = 550540.
The previous prime is 550531. The next prime is 550553. The reversal of 550541 is 145055.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 417316 + 133225 = 646^2 + 365^2
It is a cyclic number.
It is not a de Polignac number, because 550541 - 210 = 549517 is a prime.
It is a Chen prime.
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 550541.
It is not a weakly prime, because it can be changed into another prime (550531) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275270 + 275271.
It is an arithmetic number, because the mean of its divisors is an integer number (275271).
2550541 is an apocalyptic number.
It is an amenable number.
550541 is a deficient number, since it is larger than the sum of its proper divisors (1).
550541 is an equidigital number, since it uses as much as digits as its factorization.
550541 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 500, while the sum is 20.
The square root of 550541 is about 741.9845011858.
The cubic root of 550541 is about 81.9589820633.
Adding to 550541 its reverse (145055), we get a palindrome (695596).
It can be divided in two parts, 55054 and 1, that added together give a palindrome (55055).
The spelling of 550541 in words is "five hundred fifty thousand, five hundred forty-one".