550160991 has 28 divisors (see below), whose sum is σ = 842466912. Its totient is φ = 358947936.

The previous prime is 550160969. The next prime is 550161067. The reversal of 550160991 is 199061055.

550160991 is a `hidden beast` number, since 5 + 501 + 60 + 9 + 91 = 666.

550160991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550160991 - 2⁶ = 550160927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550160911) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 26235 + ... + 42291.

It is an arithmetic number, because the mean of its divisors is an integer number (30088104).

Almost surely, 2^550160991 is an apocalyptic number.

550160991 is a deficient number, since it is larger than the sum of its proper divisors (292305921).

550160991 is an equidigital number, since it uses as much as digits as its factorization.

550160991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16122 (or 16107 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 550160991 is about 23455.5108876358. The cubic root of 550160991 is about 819.4012042267.

The spelling of 550160991 in words is "five hundred fifty million, one hundred sixty thousand, nine hundred ninety-one".