3255221 has 4 divisors (see below), whose sum is σ = 3367500. Its totient is φ = 3142944.

The previous prime is 3255209. The next prime is 3255227. The reversal of 3255221 is 1225523.

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 2464900 + 790321 = 1570^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 3255221 - 2⁶ = 3255157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 3255193 and 3255202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3255227) 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, 56096 + ... + 56153.

It is an arithmetic number, because the mean of its divisors is an integer number (841875).

Almost surely, 2^3255221 is an apocalyptic number.

It is an amenable number.

3255221 is a deficient number, since it is larger than the sum of its proper divisors (112279).

3255221 is a wasteful number, since it uses less digits than its factorization.

3255221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112278.

The product of its digits is 600, while the sum is 20.

The square root of 3255221 is about 1804.2231015038. The cubic root of 3255221 is about 148.2040799172.

It can be divided in two parts, 325522 and 1, that added together give a palindrome (325523).

The spelling of 3255221 in words is "three million, two hundred fifty-five thousand, two hundred twenty-one".