5668561 has 8 divisors (see below), whose sum is σ = 5835104. Its totient is φ = 5503680.

The previous prime is 5668549. The next prime is 5668571. The reversal of 5668561 is 1658665.

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 5668561 - 2⁷ = 5668433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5668561.

It is not an unprimeable number, because it can be changed into a prime (5668571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10090 + ... + 10636.

It is an arithmetic number, because the mean of its divisors is an integer number (729388).

Almost surely, 2^5668561 is an apocalyptic number.

It is an amenable number.

5668561 is a deficient number, since it is larger than the sum of its proper divisors (166543).

5668561 is a wasteful number, since it uses less digits than its factorization.

5668561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its digits is 43200, while the sum is 37.

The square root of 5668561 is about 2380.8739991860. The cubic root of 5668561 is about 178.3025721149.

The spelling of 5668561 in words is "five million, six hundred sixty-eight thousand, five hundred sixty-one".