3255944561 has 16 divisors (see below), whose sum is σ = 3421440000. Its totient is φ = 3092528208.

The previous prime is 3255944543. The next prime is 3255944647. The reversal of 3255944561 is 1654495523.

It is a cyclic number.

It is not a de Polignac number, because 3255944561 - 2¹⁴ = 3255928177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3255940561) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2742410 + ... + 2743596.

It is an arithmetic number, because the mean of its divisors is an integer number (213840000).

Almost surely, 2^3255944561 is an apocalyptic number.

It is an amenable number.

3255944561 is a deficient number, since it is larger than the sum of its proper divisors (165495439).

3255944561 is a wasteful number, since it uses less digits than its factorization.

3255944561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948.

The product of its digits is 648000, while the sum is 44.

The square root of 3255944561 is about 57060.8846846945. The cubic root of 3255944561 is about 1482.1505989343.

The spelling of 3255944561 in words is "three billion, two hundred fifty-five million, nine hundred forty-four thousand, five hundred sixty-one".