5491594291 has 4 divisors (see below), whose sum is σ = 5541976000. Its totient is φ = 5441212584.

The previous prime is 5491594237. The next prime is 5491594327. The reversal of 5491594291 is 1924951945.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5491594291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5491597291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25190691 + ... + 25190908.

It is an arithmetic number, because the mean of its divisors is an integer number (1385494000).

Almost surely, 2^5491594291 is an apocalyptic number.

5491594291 is a deficient number, since it is larger than the sum of its proper divisors (50381709).

5491594291 is a wasteful number, since it uses less digits than its factorization.

5491594291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50381708.

The product of its digits is 583200, while the sum is 49.

The square root of 5491594291 is about 74105.2919230469. The cubic root of 5491594291 is about 1764.2744642932.

The spelling of 5491594291 in words is "five billion, four hundred ninety-one million, five hundred ninety-four thousand, two hundred ninety-one".