65001 has 8 divisors (see below), whose sum is σ = 88704. Its totient is φ = 42320.

The previous prime is 64997. The next prime is 65003. The reversal of 65001 is 10056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65001 - 2² = 64997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90 + ... + 371.

It is an arithmetic number, because the mean of its divisors is an integer number (11088).

2⁶⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

65001 is a deficient number, since it is larger than the sum of its proper divisors (23703).

65001 is a wasteful number, since it uses less digits than its factorization.

65001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

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

The square root of 65001 is about 254.9529368334. The cubic root of 65001 is about 40.2074637759.

Adding to 65001 its reverse (10056), we get a palindrome (75057).

Subtracting from 65001 its reverse (10056), we obtain a palindrome (54945).

The spelling of 65001 in words is "sixty-five thousand, one".