2560013065 has 4 divisors (see below), whose sum is σ = 3072015684. Its totient is φ = 2048010448.

The previous prime is 2560013023. The next prime is 2560013083. The reversal of 2560013065 is 5603100652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1913887504 + 646125561 = 43748^2 + 25419^2 .

It is a cyclic number.

It is not a de Polignac number, because 2560013065 - 2²³ = 2551624457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256001302 + ... + 256001311.

It is an arithmetic number, because the mean of its divisors is an integer number (768003921).

Almost surely, 2^2560013065 is an apocalyptic number.

It is an amenable number.

2560013065 is a deficient number, since it is larger than the sum of its proper divisors (512002619).

2560013065 is an equidigital number, since it uses as much as digits as its factorization.

2560013065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512002618.

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

The square root of 2560013065 is about 50596.5716723969. The cubic root of 2560013065 is about 1367.9830845078.

The spelling of 2560013065 in words is "two billion, five hundred sixty million, thirteen thousand, sixty-five".