550005000491 has 16 divisors (see below), whose sum is σ = 596318423040. Its totient is φ = 505300844160.

The previous prime is 550005000439. The next prime is 550005000497. The reversal of 550005000491 is 194000500055.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550005000491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550005000497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605315 + ... + 1210956.

It is an arithmetic number, because the mean of its divisors is an integer number (37269901440).

Almost surely, 2^550005000491 is an apocalyptic number.

550005000491 is a deficient number, since it is larger than the sum of its proper divisors (46313422549).

550005000491 is a wasteful number, since it uses less digits than its factorization.

550005000491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816714.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 550005000491 in words is "five hundred fifty billion, five million, four hundred ninety-one", and thus it is an aban number.