550566197 has 2 divisors, whose sum is σ = 550566198. Its totient is φ = 550566196.

The previous prime is 550566167. The next prime is 550566221. The reversal of 550566197 is 791665055.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415099876 + 135466321 = 20374^2 + 11639^2 .

It is a cyclic number.

It is not a de Polignac number, because 550566197 - 2⁸ = 550565941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550566127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275283098 + 275283099.

It is an arithmetic number, because the mean of its divisors is an integer number (275283099).

Almost surely, 2^550566197 is an apocalyptic number.

It is an amenable number.

550566197 is a deficient number, since it is larger than the sum of its proper divisors (1).

550566197 is an equidigital number, since it uses as much as digits as its factorization.

550566197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 550566197 is about 23464.1470546023. The cubic root of 550566197 is about 819.6023240250.

The spelling of 550566197 in words is "five hundred fifty million, five hundred sixty-six thousand, one hundred ninety-seven".