5455271991 has 8 divisors (see below), whose sum is σ = 7833211120. Its totient is φ = 3357090432.

The previous prime is 5455271989. The next prime is 5455271993. The reversal of 5455271991 is 1991725545.

5455271991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5455271989) and next prime (5455271993).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5455271991 - 2¹ = 5455271989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5455271991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5455271993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69939346 + ... + 69939423.

It is an arithmetic number, because the mean of its divisors is an integer number (979151390).

Almost surely, 2^5455271991 is an apocalyptic number.

5455271991 is a deficient number, since it is larger than the sum of its proper divisors (2377939129).

5455271991 is a wasteful number, since it uses less digits than its factorization.

5455271991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139878785.

The product of its digits is 567000, while the sum is 48.

The square root of 5455271991 is about 73859.8130988699. The cubic root of 5455271991 is about 1760.3761238797.

The spelling of 5455271991 in words is "five billion, four hundred fifty-five million, two hundred seventy-one thousand, nine hundred ninety-one".