2560563 has 6 divisors (see below), whose sum is σ = 3698604. Its totient is φ = 1707036.

The previous prime is 2560549. The next prime is 2560583. The reversal of 2560563 is 3650652.

It is not a de Polignac number, because 2560563 - 2⁶ = 2560499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2560543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142245 + ... + 142262.

It is an arithmetic number, because the mean of its divisors is an integer number (616434).

2^2560563 is an apocalyptic number.

2560563 is a deficient number, since it is larger than the sum of its proper divisors (1138041).

2560563 is a wasteful number, since it uses less digits than its factorization.

2560563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284513 (or 284510 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2560563 is about 1600.1759278279. The cubic root of 2560563 is about 136.8081032955.

The spelling of 2560563 in words is "two million, five hundred sixty thousand, five hundred sixty-three".