65000001 has 16 divisors (see below), whose sum is σ = 98657280. Its totient is φ = 37680720.

The previous prime is 64999981. The next prime is 65000011. The reversal of 65000001 is 10000056.

It is a de Polignac number, because none of the positive numbers 2^k-65000001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42061 + ... + 43578.

It is an arithmetic number, because the mean of its divisors is an integer number (6166080).

Almost surely, 2^65000001 is an apocalyptic number.

It is an amenable number.

65000001 is a deficient number, since it is larger than the sum of its proper divisors (33657279).

65000001 is a wasteful number, since it uses less digits than its factorization.

65000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85676.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 65000001 is about 8062.2578103159. The cubic root of 65000001 is about 402.0725779208.

Adding to 65000001 its reverse (10000056), we get a palindrome (75000057).

Subtracting from 65000001 its reverse (10000056), we obtain a palindrome (54999945).

The spelling of 65000001 in words is "sixty-five million, one", and thus it is an aban number and an uban number.