68425571 has 2 divisors, whose sum is σ = 68425572. Its totient is φ = 68425570.

The previous prime is 68425549. The next prime is 68425573. The reversal of 68425571 is 17552486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68425571 - 2¹⁰ = 68424547 is a prime.

It is a super-3 number, since 3×68425571³ (a number of 24 digits) contains 333 as substring.

Together with 68425573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68425573) 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, 34212785 + 34212786.

It is an arithmetic number, because the mean of its divisors is an integer number (34212786).

Almost surely, 2^68425571 is an apocalyptic number.

68425571 is a deficient number, since it is larger than the sum of its proper divisors (1).

68425571 is an equidigital number, since it uses as much as digits as its factorization.

68425571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 38.

The square root of 68425571 is about 8271.9750362293. The cubic root of 68425571 is about 409.0152273031.

The spelling of 68425571 in words is "sixty-eight million, four hundred twenty-five thousand, five hundred seventy-one".