65688125 has 20 divisors (see below), whose sum is σ = 82623552. Its totient is φ = 52206000.

The previous prime is 65688113. The next prime is 65688127. The reversal of 65688125 is 52188656.

It is not a de Polignac number, because 65688125 - 2¹² = 65684029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65688127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 141644 + ... + 142106.

Almost surely, 2^65688125 is an apocalyptic number.

It is an amenable number.

65688125 is a deficient number, since it is larger than the sum of its proper divisors (16935427).

65688125 is an equidigital number, since it uses as much as digits as its factorization.

65688125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 695 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 65688125 is about 8104.8210961131. The cubic root of 65688125 is about 403.4864504519.

The spelling of 65688125 in words is "sixty-five million, six hundred eighty-eight thousand, one hundred twenty-five".