3225378817 has 2 divisors, whose sum is σ = 3225378818. Its totient is φ = 3225378816.

The previous prime is 3225378781. The next prime is 3225378847. The reversal of 3225378817 is 7188735223.

Together with previous prime (3225378781) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2403352576 + 822026241 = 49024^2 + 28671^2 .

It is an emirp because it is prime and its reverse (7188735223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3225378817 - 2²⁷ = 3091161089 is a prime.

It is not a weakly prime, because it can be changed into another prime (3225378847) 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, 1612689408 + 1612689409.

It is an arithmetic number, because the mean of its divisors is an integer number (1612689409).

Almost surely, 2^3225378817 is an apocalyptic number.

It is an amenable number.

3225378817 is a deficient number, since it is larger than the sum of its proper divisors (1).

3225378817 is an equidigital number, since it uses as much as digits as its factorization.

3225378817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 46.

The square root of 3225378817 is about 56792.4186577751. The cubic root of 3225378817 is about 1477.4980275836.

The spelling of 3225378817 in words is "three billion, two hundred twenty-five million, three hundred seventy-eight thousand, eight hundred seventeen".