3256560305 has 16 divisors (see below), whose sum is σ = 3927740544. Its totient is φ = 2592036480.

The previous prime is 3256560277. The next prime is 3256560319. The reversal of 3256560305 is 5030656523.

It is not a de Polignac number, because 3256560305 - 2²² = 3252366001 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998237 + ... + 1001493.

It is an arithmetic number, because the mean of its divisors is an integer number (245483784).

Almost surely, 2^3256560305 is an apocalyptic number.

It is an amenable number.

3256560305 is a deficient number, since it is larger than the sum of its proper divisors (671180239).

3256560305 is a wasteful number, since it uses less digits than its factorization.

3256560305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216.

The product of its (nonzero) digits is 81000, while the sum is 35.

The square root of 3256560305 is about 57066.2799295696. The cubic root of 3256560305 is about 1482.2440247484.

The spelling of 3256560305 in words is "three billion, two hundred fifty-six million, five hundred sixty thousand, three hundred five".