68232257 has 2 divisors, whose sum is σ = 68232258. Its totient is φ = 68232256.

The previous prime is 68232251. The next prime is 68232299. The reversal of 68232257 is 75223286.

68232257 is nontrivially palindromic in base 2.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60855601 + 7376656 = 7801^2 + 2716^2 .

It is a cyclic number.

It is not a de Polignac number, because 68232257 - 2⁸ = 68232001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68232251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34116128 + 34116129.

It is an arithmetic number, because the mean of its divisors is an integer number (34116129).

Almost surely, 2^68232257 is an apocalyptic number.

It is an amenable number.

68232257 is a deficient number, since it is larger than the sum of its proper divisors (1).

68232257 is an equidigital number, since it uses as much as digits as its factorization.

68232257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 68232257 is about 8260.2818959161. The cubic root of 68232257 is about 408.6296845586.

The spelling of 68232257 in words is "sixty-eight million, two hundred thirty-two thousand, two hundred fifty-seven".