2565002260 has 12 divisors (see below), whose sum is σ = 5386504788. Its totient is φ = 1026000896.

The previous prime is 2565002249. The next prime is 2565002273. The reversal of 2565002260 is 622005652.

It can be written as a sum of positive squares in 2 ways, for example, as 761980816 + 1803021444 = 27604^2 + 42462^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 64125037 + ... + 64125076.

It is an arithmetic number, because the mean of its divisors is an integer number (448875399).

Almost surely, 2^2565002260 is an apocalyptic number.

2565002260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2565002260 is an abundant number, since it is smaller than the sum of its proper divisors (2821502528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2565002260 is a wasteful number, since it uses less digits than its factorization.

2565002260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128250122 (or 128250120 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2565002260 is about 50645.8513602052. The cubic root of 2565002260 is about 1368.8711926495.

The spelling of 2565002260 in words is "two billion, five hundred sixty-five million, two thousand, two hundred sixty".