3225561 has 4 divisors (see below), whose sum is σ = 4300752. Its totient is φ = 2150372.

The previous prime is 3225539. The next prime is 3225647. The reversal of 3225561 is 1655223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3225561 - 2⁷ = 3225433 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3225161) 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 3 ways as a sum of consecutive naturals, for example, 537591 + ... + 537596.

It is an arithmetic number, because the mean of its divisors is an integer number (1075188).

Almost surely, 2^3225561 is an apocalyptic number.

It is an amenable number.

3225561 is a deficient number, since it is larger than the sum of its proper divisors (1075191).

3225561 is a wasteful number, since it uses less digits than its factorization.

3225561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075190.

The product of its digits is 1800, while the sum is 24.

The square root of 3225561 is about 1795.9846881307. The cubic root of 3225561 is about 147.7525845500.

The spelling of 3225561 in words is "three million, two hundred twenty-five thousand, five hundred sixty-one".