5656563 has 24 divisors (see below), whose sum is σ = 9440496. Its totient is φ = 3225600.

The previous prime is 5656559. The next prime is 5656577. The reversal of 5656563 is 3656565.

It is a happy number.

It is not a de Polignac number, because 5656563 - 2² = 5656559 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (5656463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3 + ... + 3363.

It is an arithmetic number, because the mean of its divisors is an integer number (393354).

Almost surely, 2^5656563 is an apocalyptic number.

5656563 is a deficient number, since it is larger than the sum of its proper divisors (3783933).

5656563 is a wasteful number, since it uses less digits than its factorization.

5656563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395 (or 3392 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The square root of 5656563 is about 2378.3530015538. The cubic root of 5656563 is about 178.1766856475.

The spelling of 5656563 in words is "five million, six hundred fifty-six thousand, five hundred sixty-three".