2565023113 has 8 divisors (see below), whose sum is σ = 2667697280. Its totient is φ = 2464104240.

The previous prime is 2565023081. The next prime is 2565023129. The reversal of 2565023113 is 3113205652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2565023113 - 2⁵ = 2565023081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2565023213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435843 + ... + 441688.

It is an arithmetic number, because the mean of its divisors is an integer number (333462160).

Almost surely, 2^2565023113 is an apocalyptic number.

It is an amenable number.

2565023113 is a deficient number, since it is larger than the sum of its proper divisors (102674167).

2565023113 is an equidigital number, since it uses as much as digits as its factorization.

2565023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877647.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 2565023113 is about 50646.0572305486. The cubic root of 2565023113 is about 1368.8749021971.

Adding to 2565023113 its reverse (3113205652), we get a palindrome (5678228765).

The spelling of 2565023113 in words is "two billion, five hundred sixty-five million, twenty-three thousand, one hundred thirteen".