2560526865 has 96 divisors (see below), whose sum is σ = 5094835200. Its totient is φ = 1179813888.

The previous prime is 2560526863. The next prime is 2560526921. The reversal of 2560526865 is 5686250652.

2560526865 is a `hidden beast` number, since 2 + 5 + 60 + 526 + 8 + 65 = 666.

It is not a de Polignac number, because 2560526865 - 2¹ = 2560526863 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2560526865.

It is not an unprimeable number, because it can be changed into a prime (2560526863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 630361 + ... + 634409.

It is an arithmetic number, because the mean of its divisors is an integer number (53071200).

Almost surely, 2^2560526865 is an apocalyptic number.

It is an amenable number.

2560526865 is a deficient number, since it is larger than the sum of its proper divisors (2534308335).

2560526865 is a wasteful number, since it uses less digits than its factorization.

2560526865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143 (or 4140 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The square root of 2560526865 is about 50601.6488367721. The cubic root of 2560526865 is about 1368.0745974121.

The spelling of 2560526865 in words is "two billion, five hundred sixty million, five hundred twenty-six thousand, eight hundred sixty-five".