2620560563 has 4 divisors (see below), whose sum is σ = 2620686480. Its totient is φ = 2620434648.

The previous prime is 2620560539. The next prime is 2620560581. The reversal of 2620560563 is 3650650262.

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 2620560563 - 2¹² = 2620556467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2620560583) 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, 23495 + ... + 76112.

It is an arithmetic number, because the mean of its divisors is an integer number (655171620).

Almost surely, 2^2620560563 is an apocalyptic number.

2620560563 is a deficient number, since it is larger than the sum of its proper divisors (125917).

2620560563 is an equidigital number, since it uses as much as digits as its factorization.

2620560563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125916.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 2620560563 is about 51191.4110276324. The cubic root of 2620560563 is about 1378.6839941419.

It can be divided in two parts, 26205 and 60563, that added together give a palindrome (86768).

The spelling of 2620560563 in words is "two billion, six hundred twenty million, five hundred sixty thousand, five hundred sixty-three".