68193253 has 2 divisors, whose sum is σ = 68193254. Its totient is φ = 68193252.

The previous prime is 68193247. The next prime is 68193259. The reversal of 68193253 is 35239186.

It is a balanced prime because it is at equal distance from previous prime (68193247) and next prime (68193259).

It can be written as a sum of positive squares in only one way, i.e., 67207204 + 986049 = 8198^2 + 993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68193253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68193259) 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, 34096626 + 34096627.

It is an arithmetic number, because the mean of its divisors is an integer number (34096627).

Almost surely, 2^68193253 is an apocalyptic number.

It is an amenable number.

68193253 is a deficient number, since it is larger than the sum of its proper divisors (1).

68193253 is an equidigital number, since it uses as much as digits as its factorization.

68193253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 68193253 is about 8257.9206220452. The cubic root of 68193253 is about 408.5518072670.

The spelling of 68193253 in words is "sixty-eight million, one hundred ninety-three thousand, two hundred fifty-three".