8125563 has 4 divisors (see below), whose sum is σ = 10834088. Its totient is φ = 5417040.

The previous prime is 8125561. The next prime is 8125571. The reversal of 8125563 is 3655218.

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

It is not a de Polignac number, because 8125563 - 2¹ = 8125561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8125563.

It is not an unprimeable number, because it can be changed into a prime (8125561) 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, 1354258 + ... + 1354263.

It is an arithmetic number, because the mean of its divisors is an integer number (2708522).

Almost surely, 2^8125563 is an apocalyptic number.

8125563 is a deficient number, since it is larger than the sum of its proper divisors (2708525).

8125563 is a wasteful number, since it uses less digits than its factorization.

8125563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708524.

The product of its digits is 7200, while the sum is 30.

The square root of 8125563 is about 2850.5373177701. The cubic root of 8125563 is about 201.0409312450.

It can be divided in two parts, 81255 and 63, that added together give a palindrome (81318).

The spelling of 8125563 in words is "eight million, one hundred twenty-five thousand, five hundred sixty-three".