5564581 has 4 divisors (see below), whose sum is σ = 6070464. Its totient is φ = 5058700.

The previous prime is 5564579. The next prime is 5564591. The reversal of 5564581 is 1854655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5564581 - 2¹ = 5564579 is a prime.

It is a super-2 number, since 2×5564581² = 61929123411122, which contains 22 as substring.

It is a Duffinian number.

5564581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5564591) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 252925 + ... + 252946.

It is an arithmetic number, because the mean of its divisors is an integer number (1517616).

Almost surely, 2^5564581 is an apocalyptic number.

It is an amenable number.

5564581 is a deficient number, since it is larger than the sum of its proper divisors (505883).

5564581 is a wasteful number, since it uses less digits than its factorization.

5564581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505882.

The product of its digits is 24000, while the sum is 34.

The square root of 5564581 is about 2358.9364128776. The cubic root of 5564581 is about 177.2056192984.

The spelling of 5564581 in words is "five million, five hundred sixty-four thousand, five hundred eighty-one".