68335425 has 18 divisors (see below), whose sum is σ = 122396742. Its totient is φ = 36445440.

The previous prime is 68335417. The next prime is 68335429. The reversal of 68335425 is 52453386.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 173889 + 68161536 = 417^2 + 8256^2 .

It is not a de Polignac number, because 68335425 - 2³ = 68335417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68335425.

It is not an unprimeable number, because it can be changed into a prime (68335429) 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 in 17 ways as a sum of consecutive naturals, for example, 151632 + ... + 152081.

It is an arithmetic number, because the mean of its divisors is an integer number (6799819).

Almost surely, 2^68335425 is an apocalyptic number.

It is an amenable number.

68335425 is a deficient number, since it is larger than the sum of its proper divisors (54061317).

68335425 is a wasteful number, since it uses less digits than its factorization.

68335425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303729 (or 303721 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 68335425 is about 8266.5243603343. The cubic root of 68335425 is about 408.8355318583.

The spelling of 68335425 in words is "sixty-eight million, three hundred thirty-five thousand, four hundred twenty-five".