550551060991 has 2 divisors, whose sum is σ = 550551060992. Its totient is φ = 550551060990.

The previous prime is 550551060977. The next prime is 550551061031. The reversal of 550551060991 is 199060155055.

550551060991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 550551060991 - 2²⁵ = 550517506559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550551060491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275275530495 + 275275530496.

It is an arithmetic number, because the mean of its divisors is an integer number (275275530496).

Almost surely, 2^550551060991 is an apocalyptic number.

550551060991 is a deficient number, since it is larger than the sum of its proper divisors (1).

550551060991 is an equidigital number, since it uses as much as digits as its factorization.

550551060991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 303750, while the sum is 46.

The spelling of 550551060991 in words is "five hundred fifty billion, five hundred fifty-one million, sixty thousand, nine hundred ninety-one".