2565061103 has 16 divisors (see below), whose sum is σ = 2826835200. Its totient is φ = 2308154880.

The previous prime is 2565061027. The next prime is 2565061151. The reversal of 2565061103 is 3011605652.

It is a cyclic number.

It is not a de Polignac number, because 2565061103 - 2¹⁴ = 2565044719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565061003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546575 + ... + 551247.

It is an arithmetic number, because the mean of its divisors is an integer number (176677200).

Almost surely, 2^2565061103 is an apocalyptic number.

2565061103 is a deficient number, since it is larger than the sum of its proper divisors (261774097).

2565061103 is a wasteful number, since it uses less digits than its factorization.

2565061103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2565061103 is about 50646.4322830345. The cubic root of 2565061103 is about 1368.8816601999.

Adding to 2565061103 its reverse (3011605652), we get a palindrome (5576666755).

The spelling of 2565061103 in words is "two billion, five hundred sixty-five million, sixty-one thousand, one hundred three".