5491055197 has 2 divisors, whose sum is σ = 5491055198. Its totient is φ = 5491055196.

The previous prime is 5491055179. The next prime is 5491055201. The reversal of 5491055197 is 7915501945.

Together with previous prime (5491055179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5122837476 + 368217721 = 71574^2 + 19189^2 .

It is a cyclic number.

It is not a de Polignac number, because 5491055197 - 2⁷ = 5491055069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5491055107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2745527598 + 2745527599.

It is an arithmetic number, because the mean of its divisors is an integer number (2745527599).

Almost surely, 2^5491055197 is an apocalyptic number.

It is an amenable number.

5491055197 is a deficient number, since it is larger than the sum of its proper divisors (1).

5491055197 is an equidigital number, since it uses as much as digits as its factorization.

5491055197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 46.

The square root of 5491055197 is about 74101.6544822044. The cubic root of 5491055197 is about 1764.2167311558.

The spelling of 5491055197 in words is "five billion, four hundred ninety-one million, fifty-five thousand, one hundred ninety-seven".