68250825 has 18 divisors (see below), whose sum is σ = 122245214. Its totient is φ = 36400320.

The previous prime is 68250799. The next prime is 68250841. The reversal of 68250825 is 52805286.

It can be written as a sum of positive squares in 3 ways, for example, as 19474569 + 48776256 = 4413^2 + 6984^2 .

It is not a de Polignac number, because 68250825 - 2¹¹ = 68248777 is a prime.

It is a super-2 number, since 2×68250825² = 9316350226361250, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68250825.

It is an unprimeable number.

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, 151444 + ... + 151893.

Almost surely, 2^68250825 is an apocalyptic number.

It is an amenable number.

68250825 is a deficient number, since it is larger than the sum of its proper divisors (53994389).

68250825 is a wasteful number, since it uses less digits than its factorization.

68250825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303353 (or 303345 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 68250825 is about 8261.4057520497. The cubic root of 68250825 is about 408.6667479075. Note that the first 3 decimals are identical.

The spelling of 68250825 in words is "sixty-eight million, two hundred fifty thousand, eight hundred twenty-five".