2243550091 has 2 divisors, whose sum is σ = 2243550092. Its totient is φ = 2243550090.

The previous prime is 2243550059. The next prime is 2243550139. The reversal of 2243550091 is 1900553422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2243550091 - 2⁵ = 2243550059 is a prime.

It is a super-2 number, since 2×2243550091² = 10067034021652216562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2243550031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121775045 + 1121775046.

It is an arithmetic number, because the mean of its divisors is an integer number (1121775046).

Almost surely, 2^2243550091 is an apocalyptic number.

2243550091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243550091 is an equidigital number, since it uses as much as digits as its factorization.

2243550091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2243550091 is about 47366.1280980407. The cubic root of 2243550091 is about 1309.1173844137.

The spelling of 2243550091 in words is "two billion, two hundred forty-three million, five hundred fifty thousand, ninety-one".