2243055991 has 16 divisors (see below), whose sum is σ = 2466858240. Its totient is φ = 2022623680.

The previous prime is 2243055977. The next prime is 2243056021. The reversal of 2243055991 is 1995503422.

2243055991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2243055991 - 2⁵ = 2243055959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243055901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132440 + ... + 1134418.

It is an arithmetic number, because the mean of its divisors is an integer number (154178640).

Almost surely, 2^2243055991 is an apocalyptic number.

2243055991 is a deficient number, since it is larger than the sum of its proper divisors (223802249).

2243055991 is a wasteful number, since it uses less digits than its factorization.

2243055991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 2243055991 is about 47360.9120583631. The cubic root of 2243055991 is about 1309.0212744743.

The spelling of 2243055991 in words is "two billion, two hundred forty-three million, fifty-five thousand, nine hundred ninety-one".