5566609 has 4 divisors (see below), whose sum is σ = 5571904. Its totient is φ = 5561316.

The previous prime is 5566607. The next prime is 5566619. The reversal of 5566609 is 9066655.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5566609 - 2¹ = 5566607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5566607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477 + ... + 3370.

It is an arithmetic number, because the mean of its divisors is an integer number (1392976).

Almost surely, 2^5566609 is an apocalyptic number.

It is an amenable number.

5566609 is a deficient number, since it is larger than the sum of its proper divisors (5295).

5566609 is a wasteful number, since it uses less digits than its factorization.

5566609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 5566609 is about 2359.3662284605. The cubic root of 5566609 is about 177.2271440905.

The spelling of 5566609 in words is "five million, five hundred sixty-six thousand, six hundred nine".