68818125 has 60 divisors (see below), whose sum is σ = 122760704. Its totient is φ = 34272000.

The previous prime is 68818121. The next prime is 68818129. The reversal of 68818125 is 52181886.

It is an interprime number because it is at equal distance from previous prime (68818121) and next prime (68818129).

It is not a de Polignac number, because 68818125 - 2² = 68818121 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68818121) 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 59 ways as a sum of consecutive naturals, for example, 541812 + ... + 541938.

Almost surely, 2^68818125 is an apocalyptic number.

It is an amenable number.

68818125 is a deficient number, since it is larger than the sum of its proper divisors (53942579).

68818125 is a wasteful number, since it uses less digits than its factorization.

68818125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 152 counting only the distinct ones).

The product of its digits is 30720, while the sum is 39.

The square root of 68818125 is about 8295.6690507758. The cubic root of 68818125 is about 409.7959027801.

The spelling of 68818125 in words is "sixty-eight million, eight hundred eighteen thousand, one hundred twenty-five".