2250643691 has 2 divisors, whose sum is σ = 2250643692. Its totient is φ = 2250643690.

The previous prime is 2250643669. The next prime is 2250643711. The reversal of 2250643691 is 1963460522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2250643691 - 2¹⁴ = 2250627307 is a prime.

It is not a weakly prime, because it can be changed into another prime (2250643601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125321845 + 1125321846.

It is an arithmetic number, because the mean of its divisors is an integer number (1125321846).

Almost surely, 2^2250643691 is an apocalyptic number.

2250643691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2250643691 is an equidigital number, since it uses as much as digits as its factorization.

2250643691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 2250643691 is about 47440.9495162144. The cubic root of 2250643691 is about 1310.4956442751.

The spelling of 2250643691 in words is "two billion, two hundred fifty million, six hundred forty-three thousand, six hundred ninety-one".