10640563 has 4 divisors (see below), whose sum is σ = 10647088. Its totient is φ = 10634040.

The previous prime is 10640543. The next prime is 10640569. The reversal of 10640563 is 36504601.

10640563 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10640563 - 2⁹ = 10640051 is a prime.

It is a super-2 number, since 2×10640563² = 226443161913938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10640569) 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, 1618 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (2661772).

Almost surely, 2^10640563 is an apocalyptic number.

10640563 is a deficient number, since it is larger than the sum of its proper divisors (6525).

10640563 is an equidigital number, since it uses as much as digits as its factorization.

10640563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6524.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 10640563 is about 3261.9875842805. The cubic root of 10640563 is about 219.9487690626.

The spelling of 10640563 in words is "ten million, six hundred forty thousand, five hundred sixty-three".