68553313 has 2 divisors, whose sum is σ = 68553314. Its totient is φ = 68553312.

The previous prime is 68553301. The next prime is 68553337. The reversal of 68553313 is 31335586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48330304 + 20223009 = 6952^2 + 4497^2 .

It is a cyclic number.

It is not a de Polignac number, because 68553313 - 2⁹ = 68552801 is a prime.

It is not a weakly prime, because it can be changed into another prime (68553343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34276656 + 34276657.

It is an arithmetic number, because the mean of its divisors is an integer number (34276657).

Almost surely, 2^68553313 is an apocalyptic number.

It is an amenable number.

68553313 is a deficient number, since it is larger than the sum of its proper divisors (1).

68553313 is an equidigital number, since it uses as much as digits as its factorization.

68553313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 34.

The square root of 68553313 is about 8279.6928083112. The cubic root of 68553313 is about 409.2695958690.

Adding to 68553313 its reverse (31335586), we get a palindrome (99888899).

The spelling of 68553313 in words is "sixty-eight million, five hundred fifty-three thousand, three hundred thirteen".