5548638091 has 2 divisors, whose sum is σ = 5548638092. Its totient is φ = 5548638090.

The previous prime is 5548638089. The next prime is 5548638103. The reversal of 5548638091 is 1908368455.

5548638091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5548638091 - 2¹ = 5548638089 is a prime.

It is a super-2 number, since 2×5548638091² = 61574769329792248562, which contains 22 as substring.

Together with 5548638089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5548638791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2774319045 + 2774319046.

It is an arithmetic number, because the mean of its divisors is an integer number (2774319046).

Almost surely, 2^5548638091 is an apocalyptic number.

5548638091 is a deficient number, since it is larger than the sum of its proper divisors (1).

5548638091 is an equidigital number, since it uses as much as digits as its factorization.

5548638091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 5548638091 is about 74489.1810332212. The cubic root of 5548638091 is about 1770.3622196968.

The spelling of 5548638091 in words is "five billion, five hundred forty-eight million, six hundred thirty-eight thousand, ninety-one".