3225809561 has 16 divisors (see below), whose sum is σ = 3566506944. Its totient is φ = 2898794304.

The previous prime is 3225809549. The next prime is 3225809579. The reversal of 3225809561 is 1659085223.

It is a cyclic number.

It is not a de Polignac number, because 3225809561 - 2¹⁴ = 3225793177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3225809761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162215 + ... + 181011.

It is an arithmetic number, because the mean of its divisors is an integer number (222906684).

Almost surely, 2^3225809561 is an apocalyptic number.

It is an amenable number.

3225809561 is a deficient number, since it is larger than the sum of its proper divisors (340697383).

3225809561 is a wasteful number, since it uses less digits than its factorization.

3225809561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19160.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 3225809561 is about 56796.2107979045. The cubic root of 3225809561 is about 1477.5637971275.

The spelling of 3225809561 in words is "three billion, two hundred twenty-five million, eight hundred nine thousand, five hundred sixty-one".