10656563 has 4 divisors (see below), whose sum is σ = 10681608. Its totient is φ = 10631520.

The previous prime is 10656557. The next prime is 10656577. The reversal of 10656563 is 36565601.

10656563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36565601 = 53 ⋅689917.

It is a cyclic number.

It is not a de Polignac number, because 10656563 - 2²⁰ = 9607987 is a prime.

It is a super-2 number, since 2×10656563² = 227124669945938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10655563) 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, 11873 + ... + 12738.

It is an arithmetic number, because the mean of its divisors is an integer number (2670402).

Almost surely, 2^10656563 is an apocalyptic number.

10656563 is a deficient number, since it is larger than the sum of its proper divisors (25045).

10656563 is an equidigital number, since it uses as much as digits as its factorization.

10656563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25044.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 10656563 is about 3264.4391555059. The cubic root of 10656563 is about 220.0589580276.

The spelling of 10656563 in words is "ten million, six hundred fifty-six thousand, five hundred sixty-three".