3255864785 has 8 divisors (see below), whose sum is σ = 3945721896. Its totient is φ = 2578902400.

The previous prime is 3255864779. The next prime is 3255864811. The reversal of 3255864785 is 5874685523.

It can be written as a sum of positive squares in 4 ways, for example, as 1808290576 + 1447574209 = 42524^2 + 38047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3255864785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223124 + ... + 3224133.

It is an arithmetic number, because the mean of its divisors is an integer number (493215237).

Almost surely, 2^3255864785 is an apocalyptic number.

It is an amenable number.

3255864785 is a deficient number, since it is larger than the sum of its proper divisors (689857111).

3255864785 is a wasteful number, since it uses less digits than its factorization.

3255864785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6447363.

The product of its digits is 8064000, while the sum is 53.

The square root of 3255864785 is about 57060.1856376230. The cubic root of 3255864785 is about 1482.1384937925.

The spelling of 3255864785 in words is "three billion, two hundred fifty-five million, eight hundred sixty-four thousand, seven hundred eighty-five".