2256213247 has 2 divisors, whose sum is σ = 2256213248. Its totient is φ = 2256213246.

The previous prime is 2256213241. The next prime is 2256213287. The reversal of 2256213247 is 7423126522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2256213247 - 2⁷ = 2256213119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256213241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128106623 + 1128106624.

It is an arithmetic number, because the mean of its divisors is an integer number (1128106624).

Almost surely, 2^2256213247 is an apocalyptic number.

2256213247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256213247 is an equidigital number, since it uses as much as digits as its factorization.

2256213247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 2256213247 is about 47499.6131247403. The cubic root of 2256213247 is about 1311.5757599249.

Adding to 2256213247 its reverse (7423126522), we get a palindrome (9679339769).

The spelling of 2256213247 in words is "two billion, two hundred fifty-six million, two hundred thirteen thousand, two hundred forty-seven".