5640565 has 8 divisors (see below), whose sum is σ = 7735680. Its totient is φ = 3867792.

The previous prime is 5640559. The next prime is 5640599. The reversal of 5640565 is 5650465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5640565 - 2⁵ = 5640533 is a prime.

5640565 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80545 + ... + 80614.

It is an arithmetic number, because the mean of its divisors is an integer number (966960).

Almost surely, 2^5640565 is an apocalyptic number.

It is an amenable number.

5640565 is a deficient number, since it is larger than the sum of its proper divisors (2095115).

5640565 is a wasteful number, since it uses less digits than its factorization.

5640565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161171.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 5640565 is about 2374.9873683875. The cubic root of 5640565 is about 178.0085528020.

Adding to 5640565 its product of nonzero digits (18000), we get a palindrome (5658565).

The spelling of 5640565 in words is "five million, six hundred forty thousand, five hundred sixty-five".