5641565 has 4 divisors (see below), whose sum is σ = 6769884. Its totient is φ = 4513248.

The previous prime is 5641553. The next prime is 5641577. The reversal of 5641565 is 5651465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5651465 = 5 ⋅1130293.

It is an interprime number because it is at equal distance from previous prime (5641553) and next prime (5641577).

It can be written as a sum of positive squares in 2 ways, for example, as 3829849 + 1811716 = 1957^2 + 1346^2 .

It is a cyclic number.

It is not a de Polignac number, because 5641565 - 2¹⁰ = 5640541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564152 + ... + 564161.

It is an arithmetic number, because the mean of its divisors is an integer number (1692471).

Almost surely, 2^5641565 is an apocalyptic number.

It is an amenable number.

5641565 is a deficient number, since it is larger than the sum of its proper divisors (1128319).

5641565 is a wasteful number, since it uses less digits than its factorization.

5641565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128318.

The product of its digits is 18000, while the sum is 32.

The square root of 5641565 is about 2375.1978864928. The cubic root of 5641565 is about 178.0190717266.

Adding to 5641565 its product of digits (18000), we get a palindrome (5659565).

The spelling of 5641565 in words is "five million, six hundred forty-one thousand, five hundred sixty-five".