6650201 has 4 divisors (see below), whose sum is σ = 6684852. Its totient is φ = 6615552.

The previous prime is 6650153. The next prime is 6650207. The reversal of 6650201 is 1020566.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2886601 + 3763600 = 1699^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 6650201 - 2²² = 2455897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6650207) 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 3 ways as a sum of consecutive naturals, for example, 17036 + ... + 17421.

It is an arithmetic number, because the mean of its divisors is an integer number (1671213).

Almost surely, 2^6650201 is an apocalyptic number.

It is an amenable number.

6650201 is a deficient number, since it is larger than the sum of its proper divisors (34651).

6650201 is a wasteful number, since it uses less digits than its factorization.

6650201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34650.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 6650201 is about 2578.7983635794. The cubic root of 6650201 is about 188.0521301792.

Adding to 6650201 its reverse (1020566), we get a palindrome (7670767).

The spelling of 6650201 in words is "six million, six hundred fifty thousand, two hundred one".