65500189 has 2 divisors, whose sum is σ = 65500190. Its totient is φ = 65500188.

The previous prime is 65500177. The next prime is 65500219. The reversal of 65500189 is 98100556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42055225 + 23444964 = 6485^2 + 4842^2 .

It is a cyclic number.

It is not a de Polignac number, because 65500189 - 2⁹ = 65499677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65500109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750094 + 32750095.

It is an arithmetic number, because the mean of its divisors is an integer number (32750095).

Almost surely, 2^65500189 is an apocalyptic number.

It is an amenable number.

65500189 is a deficient number, since it is larger than the sum of its proper divisors (1).

65500189 is an equidigital number, since it uses as much as digits as its factorization.

65500189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 65500189 is about 8093.2187045699. The cubic root of 65500189 is about 403.1012866607.

The spelling of 65500189 in words is "sixty-five million, five hundred thousand, one hundred eighty-nine".