550261865567 has 2 divisors, whose sum is σ = 550261865568. Its totient is φ = 550261865566.

The previous prime is 550261865539. The next prime is 550261865611. The reversal of 550261865567 is 765568162055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550261865567 - 2³⁸ = 275383958623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550261865537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275130932783 + 275130932784.

It is an arithmetic number, because the mean of its divisors is an integer number (275130932784).

Almost surely, 2^550261865567 is an apocalyptic number.

550261865567 is a deficient number, since it is larger than the sum of its proper divisors (1).

550261865567 is an equidigital number, since it uses as much as digits as its factorization.

550261865567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 550261865567 in words is "five hundred fifty billion, two hundred sixty-one million, eight hundred sixty-five thousand, five hundred sixty-seven".