550565941 has 2 divisors, whose sum is σ = 550565942. Its totient is φ = 550565940.

The previous prime is 550565933. The next prime is 550565963. The reversal of 550565941 is 149565055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318765316 + 231800625 = 17854^2 + 15225^2 .

It is a cyclic number.

It is not a de Polignac number, because 550565941 - 2³ = 550565933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550565894 and 550565903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550565441) 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, 275282970 + 275282971.

It is an arithmetic number, because the mean of its divisors is an integer number (275282971).

Almost surely, 2^550565941 is an apocalyptic number.

It is an amenable number.

550565941 is a deficient number, since it is larger than the sum of its proper divisors (1).

550565941 is an equidigital number, since it uses as much as digits as its factorization.

550565941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 550565941 is about 23464.1415994705. The cubic root of 550565941 is about 819.6021969932.

The spelling of 550565941 in words is "five hundred fifty million, five hundred sixty-five thousand, nine hundred forty-one".