550004989491 has 12 divisors (see below), whose sum is σ = 795067045240. Its totient is φ = 366385965120.

The previous prime is 550004989451. The next prime is 550004989511. The reversal of 550004989491 is 194989400055.

550004989491 is a `hidden beast` number, since 5 + 500 + 0 + 4 + 98 + 9 + 49 + 1 = 666.

It is not a de Polignac number, because 550004989491 - 2⁹ = 550004988979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550004989421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23656726 + ... + 23679963.

Almost surely, 2^550004989491 is an apocalyptic number.

550004989491 is a deficient number, since it is larger than the sum of its proper divisors (245062055749).

550004989491 is a wasteful number, since it uses less digits than its factorization.

550004989491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47337986 (or 47337983 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 54.

The spelling of 550004989491 in words is "five hundred fifty billion, four million, nine hundred eighty-nine thousand, four hundred ninety-one".