5491851227 has 2 divisors, whose sum is σ = 5491851228. Its totient is φ = 5491851226.

The previous prime is 5491851217. The next prime is 5491851251. The reversal of 5491851227 is 7221581945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5491851227 - 2¹⁸ = 5491589083 is a prime.

It is not a weakly prime, because it can be changed into another prime (5491851217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2745925613 + 2745925614.

It is an arithmetic number, because the mean of its divisors is an integer number (2745925614).

Almost surely, 2^5491851227 is an apocalyptic number.

5491851227 is a deficient number, since it is larger than the sum of its proper divisors (1).

5491851227 is an equidigital number, since it uses as much as digits as its factorization.

5491851227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 44.

The square root of 5491851227 is about 74107.0254901652. The cubic root of 5491851227 is about 1764.3019789838.

The spelling of 5491851227 in words is "five billion, four hundred ninety-one million, eight hundred fifty-one thousand, two hundred twenty-seven".