67275390625 has 33 divisors (see below), whose sum is σ = 85119627163. Its totient is φ = 53171875000.

The previous prime is 67275390601. The next prime is 67275390631. The reversal of 67275390625 is 52609357276.

The square root of 67275390625 is 259375.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 5 ways, for example, as 386948241 + 66888442384 = 19671^2 + 258628^2 .

It is not a de Polignac number, because 67275390625 - 2²³ = 67267002017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 810546834 + ... + 810546916.

Almost surely, 2^67275390625 is an apocalyptic number.

67275390625 is the 259375-th square number.

67275390625 is the 129688-th centered octagonal number.

It is an amenable number.

67275390625 is a deficient number, since it is larger than the sum of its proper divisors (17844236538).

67275390625 is an frugal number, since it uses more digits than its factorization.

67275390625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 52.

The spelling of 67275390625 in words is "sixty-seven billion, two hundred seventy-five million, three hundred ninety thousand, six hundred twenty-five".