68376251 has 2 divisors, whose sum is σ = 68376252. Its totient is φ = 68376250.

The previous prime is 68376239. The next prime is 68376257. The reversal of 68376251 is 15267386.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68376251 is a prime.

It is not a weakly prime, because it can be changed into another prime (68376257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34188125 + 34188126.

It is an arithmetic number, because the mean of its divisors is an integer number (34188126).

Almost surely, 2^68376251 is an apocalyptic number.

68376251 is a deficient number, since it is larger than the sum of its proper divisors (1).

68376251 is an equidigital number, since it uses as much as digits as its factorization.

68376251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 68376251 is about 8268.9933486489. The cubic root of 68376251 is about 408.9169332524.

The spelling of 68376251 in words is "sixty-eight million, three hundred seventy-six thousand, two hundred fifty-one".