5665189 has 2 divisors, whose sum is σ = 5665190. Its totient is φ = 5665188.

The previous prime is 5665183. The next prime is 5665193. The reversal of 5665189 is 9815665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5602689 + 62500 = 2367^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 5665189 - 2¹³ = 5656997 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5665183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832594 + 2832595.

It is an arithmetic number, because the mean of its divisors is an integer number (2832595).

Almost surely, 2^5665189 is an apocalyptic number.

It is an amenable number.

5665189 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665189 is an equidigital number, since it uses as much as digits as its factorization.

5665189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 40.

The square root of 5665189 is about 2380.1657505308. The cubic root of 5665189 is about 178.2672100815.

The spelling of 5665189 in words is "five million, six hundred sixty-five thousand, one hundred eighty-nine".