550563109 has 2 divisors, whose sum is σ = 550563110. Its totient is φ = 550563108.

The previous prime is 550563077. The next prime is 550563113. The reversal of 550563109 is 901365055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 356378884 + 194184225 = 18878^2 + 13935^2 .

It is a cyclic number.

It is not a de Polignac number, because 550563109 - 2⁵ = 550563077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550563179) 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, 275281554 + 275281555.

It is an arithmetic number, because the mean of its divisors is an integer number (275281555).

Almost surely, 2^550563109 is an apocalyptic number.

It is an amenable number.

550563109 is a deficient number, since it is larger than the sum of its proper divisors (1).

550563109 is an equidigital number, since it uses as much as digits as its factorization.

550563109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 550563109 is about 23464.0812519902. The cubic root of 550563109 is about 819.6007917014.

The spelling of 550563109 in words is "five hundred fifty million, five hundred sixty-three thousand, one hundred nine".