67816725 has 24 divisors (see below), whose sum is σ = 112379712. Its totient is φ = 36086400.

The previous prime is 67816711. The next prime is 67816729. The reversal of 67816725 is 52761876.

It is not a de Polignac number, because 67816725 - 2⁴ = 67816709 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67816729) 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 23 ways as a sum of consecutive naturals, for example, 46609 + ... + 48041.

It is an arithmetic number, because the mean of its divisors is an integer number (4682488).

Almost surely, 2^67816725 is an apocalyptic number.

It is an amenable number.

67816725 is a deficient number, since it is larger than the sum of its proper divisors (44562987).

67816725 is a wasteful number, since it uses less digits than its factorization.

67816725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077 (or 2072 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 67816725 is about 8235.0910741776. The cubic root of 67816725 is about 407.7984815574.

The spelling of 67816725 in words is "sixty-seven million, eight hundred sixteen thousand, seven hundred twenty-five".