67811125 has 8 divisors (see below), whose sum is σ = 84628440. Its totient is φ = 54248800.

The previous prime is 67811111. The next prime is 67811141. The reversal of 67811125 is 52111876.

It can be written as a sum of positive squares in 4 ways, for example, as 3073009 + 64738116 = 1753^2 + 8046^2 .

It is not a de Polignac number, because 67811125 - 2⁷ = 67810997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271120 + ... + 271369.

It is an arithmetic number, because the mean of its divisors is an integer number (10578555).

Almost surely, 2^67811125 is an apocalyptic number.

It is an amenable number.

67811125 is a deficient number, since it is larger than the sum of its proper divisors (16817315).

67811125 is an equidigital number, since it uses as much as digits as its factorization.

67811125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542504 (or 542494 counting only the distinct ones).

The product of its digits is 3360, while the sum is 31.

The square root of 67811125 is about 8234.7510587752. The cubic root of 67811125 is about 407.7872565272.

The spelling of 67811125 in words is "sixty-seven million, eight hundred eleven thousand, one hundred twenty-five".