2608265563 has 4 divisors (see below), whose sum is σ = 2608386840. Its totient is φ = 2608144288.

The previous prime is 2608265557. The next prime is 2608265587. The reversal of 2608265563 is 3655628062.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3655628062 = 2 ⋅1827814031.

It is a cyclic number.

It is not a de Polignac number, because 2608265563 - 2¹³ = 2608257371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2608265503) 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, 18718 + ... + 74611.

It is an arithmetic number, because the mean of its divisors is an integer number (652096710).

Almost surely, 2^2608265563 is an apocalyptic number.

2608265563 is a deficient number, since it is larger than the sum of its proper divisors (121277).

2608265563 is an equidigital number, since it uses as much as digits as its factorization.

2608265563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121276.

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 2608265563 is about 51071.1813354655. The cubic root of 2608265563 is about 1376.5244690570.

The spelling of 2608265563 in words is "two billion, six hundred eight million, two hundred sixty-five thousand, five hundred sixty-three".