2254644421 has 2 divisors, whose sum is σ = 2254644422. Its totient is φ = 2254644420.

The previous prime is 2254644361. The next prime is 2254644439. The reversal of 2254644421 is 1244464522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1133332225 + 1121312196 = 33665^2 + 33486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2254644421 - 2¹⁹ = 2254120133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2254144421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127322210 + 1127322211.

It is an arithmetic number, because the mean of its divisors is an integer number (1127322211).

Almost surely, 2^2254644421 is an apocalyptic number.

It is an amenable number.

2254644421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2254644421 is an equidigital number, since it uses as much as digits as its factorization.

2254644421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 34.

The square root of 2254644421 is about 47483.0961606338. The cubic root of 2254644421 is about 1311.2716942142.

The spelling of 2254644421 in words is "two billion, two hundred fifty-four million, six hundred forty-four thousand, four hundred twenty-one".