2565280113 has 16 divisors (see below), whose sum is σ = 3768265152. Its totient is φ = 1539320000.

The previous prime is 2565280099. The next prime is 2565280129. The reversal of 2565280113 is 3110825652.

It is a cyclic number.

It is not a de Polignac number, because 2565280113 - 2⁴ = 2565280097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2565285113) 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, 381498 + ... + 388163.

It is an arithmetic number, because the mean of its divisors is an integer number (235516572).

Almost surely, 2^2565280113 is an apocalyptic number.

It is an amenable number.

2565280113 is a deficient number, since it is larger than the sum of its proper divisors (1202985039).

2565280113 is a wasteful number, since it uses less digits than its factorization.

2565280113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769776.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2565280113 is about 50648.5943832600. The cubic root of 2565280113 is about 1368.9206183674.

The spelling of 2565280113 in words is "two billion, five hundred sixty-five million, two hundred eighty thousand, one hundred thirteen".