550661203 has 2 divisors, whose sum is σ = 550661204. Its totient is φ = 550661202.

The previous prime is 550661197. The next prime is 550661207. The reversal of 550661203 is 302166055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550661203 - 2⁵ = 550661171 is a prime.

It is not a weakly prime, because it can be changed into another prime (550661207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275330601 + 275330602.

It is an arithmetic number, because the mean of its divisors is an integer number (275330602).

Almost surely, 2^550661203 is an apocalyptic number.

550661203 is a deficient number, since it is larger than the sum of its proper divisors (1).

550661203 is an equidigital number, since it uses as much as digits as its factorization.

550661203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 550661203 is about 23466.1714602105. The cubic root of 550661203 is about 819.6494649867.

The spelling of 550661203 in words is "five hundred fifty million, six hundred sixty-one thousand, two hundred three".