550955563 has 2 divisors, whose sum is σ = 550955564. Its totient is φ = 550955562.

The previous prime is 550955513. The next prime is 550955609. The reversal of 550955563 is 365559055.

550955563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 550955563 - 2²¹ = 548858411 is a prime.

It is not a weakly prime, because it can be changed into another prime (550955513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275477781 + 275477782.

It is an arithmetic number, because the mean of its divisors is an integer number (275477782).

Almost surely, 2^550955563 is an apocalyptic number.

550955563 is a deficient number, since it is larger than the sum of its proper divisors (1).

550955563 is an equidigital number, since it uses as much as digits as its factorization.

550955563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 506250, while the sum is 43.

The square root of 550955563 is about 23472.4426296029. The cubic root of 550955563 is about 819.7954888556.

The spelling of 550955563 in words is "five hundred fifty million, nine hundred fifty-five thousand, five hundred sixty-three".