8525563 has 4 divisors (see below), whose sum is σ = 8535760. Its totient is φ = 8515368.

The previous prime is 8525557. The next prime is 8525579. The reversal of 8525563 is 3655258.

It is a happy number.

8525563 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8525563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8525593) 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, 3720 + ... + 5557.

It is an arithmetic number, because the mean of its divisors is an integer number (2133940).

Almost surely, 2^8525563 is an apocalyptic number.

8525563 is a deficient number, since it is larger than the sum of its proper divisors (10197).

8525563 is an equidigital number, since it uses as much as digits as its factorization.

8525563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10196.

The product of its digits is 36000, while the sum is 34.

The square root of 8525563 is about 2919.8566745647. The cubic root of 8525563 is about 204.2871373050.

The spelling of 8525563 in words is "eight million, five hundred twenty-five thousand, five hundred sixty-three".