3256897265 has 4 divisors (see below), whose sum is σ = 3908276724. Its totient is φ = 2605517808.

The previous prime is 3256897243. The next prime is 3256897277. The reversal of 3256897265 is 5627986523.

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 2252831296 + 1004065969 = 47464^2 + 31687^2 .

It is a cyclic number.

It is not a de Polignac number, because 3256897265 - 2⁶ = 3256897201 is a prime.

It is a Duffinian 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, 325689722 + ... + 325689731.

It is an arithmetic number, because the mean of its divisors is an integer number (977069181).

Almost surely, 2^3256897265 is an apocalyptic number.

It is an amenable number.

3256897265 is a deficient number, since it is larger than the sum of its proper divisors (651379459).

3256897265 is an equidigital number, since it uses as much as digits as its factorization.

3256897265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651379458.

The product of its digits is 5443200, while the sum is 53.

The square root of 3256897265 is about 57069.2322096592. The cubic root of 3256897265 is about 1482.2951461438.

The spelling of 3256897265 in words is "three billion, two hundred fifty-six million, eight hundred ninety-seven thousand, two hundred sixty-five".