3217821253 has 2 divisors, whose sum is σ = 3217821254. Its totient is φ = 3217821252.

The previous prime is 3217821223. The next prime is 3217821259. The reversal of 3217821253 is 3521287123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2331151524 + 886669729 = 48282^2 + 29777^2 .

It is a cyclic number.

It is not a de Polignac number, because 3217821253 - 2⁵ = 3217821221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3217821259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1608910626 + 1608910627.

It is an arithmetic number, because the mean of its divisors is an integer number (1608910627).

Almost surely, 2^3217821253 is an apocalyptic number.

It is an amenable number.

3217821253 is a deficient number, since it is larger than the sum of its proper divisors (1).

3217821253 is an equidigital number, since it uses as much as digits as its factorization.

3217821253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 34.

The square root of 3217821253 is about 56725.8429025078. The cubic root of 3217821253 is about 1476.3431225469.

The spelling of 3217821253 in words is "three billion, two hundred seventeen million, eight hundred twenty-one thousand, two hundred fifty-three".