65706625 has 16 divisors (see below), whose sum is σ = 82667520. Its totient is φ = 52138800.

The previous prime is 65706601. The next prime is 65706629. The reversal of 65706625 is 52660756.

65706625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-65706625 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65706629) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13806 + ... + 17944.

It is an arithmetic number, because the mean of its divisors is an integer number (5166720).

Almost surely, 2^65706625 is an apocalyptic number.

It is an amenable number.

65706625 is a deficient number, since it is larger than the sum of its proper divisors (16960895).

65706625 is a wasteful number, since it uses less digits than its factorization.

65706625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281 (or 4271 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 65706625 is about 8105.9623117801. The cubic root of 65706625 is about 403.5243253783.

The spelling of 65706625 in words is "sixty-five million, seven hundred six thousand, six hundred twenty-five".