5565943 has 4 divisors (see below), whose sum is σ = 5599440. Its totient is φ = 5532448.

The previous prime is 5565913. The next prime is 5565979. The reversal of 5565943 is 3495655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5565943 - 2¹³ = 5557751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5565913) 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, 16498 + ... + 16831.

It is an arithmetic number, because the mean of its divisors is an integer number (1399860).

Almost surely, 2^5565943 is an apocalyptic number.

5565943 is a deficient number, since it is larger than the sum of its proper divisors (33497).

5565943 is a wasteful number, since it uses less digits than its factorization.

5565943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33496.

The product of its digits is 81000, while the sum is 37.

The square root of 5565943 is about 2359.2250846411. The cubic root of 5565943 is about 177.2200758744.

The spelling of 5565943 in words is "five million, five hundred sixty-five thousand, nine hundred forty-three".