3256240289 has 2 divisors, whose sum is σ = 3256240290. Its totient is φ = 3256240288.

The previous prime is 3256240261. The next prime is 3256240307. The reversal of 3256240289 is 9820426523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3162150289 + 94090000 = 56233^2 + 9700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3256240289 is a prime.

It is not a weakly prime, because it can be changed into another prime (3256240219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628120144 + 1628120145.

It is an arithmetic number, because the mean of its divisors is an integer number (1628120145).

Almost surely, 2^3256240289 is an apocalyptic number.

It is an amenable number.

3256240289 is a deficient number, since it is larger than the sum of its proper divisors (1).

3256240289 is an equidigital number, since it uses as much as digits as its factorization.

3256240289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 3256240289 is about 57063.4759631763. The cubic root of 3256240289 is about 1482.1954707223.

The spelling of 3256240289 in words is "three billion, two hundred fifty-six million, two hundred forty thousand, two hundred eighty-nine".