65565201 has 24 divisors (see below), whose sum is σ = 97552000. Its totient is φ = 38937024.

The previous prime is 65565197. The next prime is 65565211. The reversal of 65565201 is 10256556.

It is not a de Polignac number, because 65565201 - 2² = 65565197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65565211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31800 + ... + 33798.

Almost surely, 2^65565201 is an apocalyptic number.

It is an amenable number.

65565201 is a deficient number, since it is larger than the sum of its proper divisors (31986799).

65565201 is a wasteful number, since it uses less digits than its factorization.

65565201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 65565201 is about 8097.2341574145. The cubic root of 65565201 is about 403.2346081857.

It can be divided in two parts, 655 and 65201, that added together give a palindrome (65856).

The spelling of 65565201 in words is "sixty-five million, five hundred sixty-five thousand, two hundred one".