17225252321 has 2 divisors, whose sum is σ = 17225252322. Its totient is φ = 17225252320.

The previous prime is 17225252257. The next prime is 17225252339. The reversal of 17225252321 is 12325252271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15835453921 + 1389798400 = 125839^2 + 37280^2 .

It is a cyclic number.

It is not a de Polignac number, because 17225252321 - 2⁶ = 17225252257 is a prime.

It is not a weakly prime, because it can be changed into another prime (17225257321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8612626160 + 8612626161.

It is an arithmetic number, because the mean of its divisors is an integer number (8612626161).

Almost surely, 2^17225252321 is an apocalyptic number.

It is an amenable number.

17225252321 is a deficient number, since it is larger than the sum of its proper divisors (1).

17225252321 is an equidigital number, since it uses as much as digits as its factorization.

17225252321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16800, while the sum is 32.

The spelling of 17225252321 in words is "seventeen billion, two hundred twenty-five million, two hundred fifty-two thousand, three hundred twenty-one".