6253221 has 16 divisors (see below), whose sum is σ = 9067520. Its totient is φ = 3810240.

The previous prime is 6253211. The next prime is 6253243. The reversal of 6253221 is 1223526.

It is not a de Polignac number, because 6253221 - 2⁶ = 6253157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6253211) 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, 3516 + ... + 4986.

It is an arithmetic number, because the mean of its divisors is an integer number (566720).

Almost surely, 2^6253221 is an apocalyptic number.

It is an amenable number.

6253221 is a deficient number, since it is larger than the sum of its proper divisors (2814299).

6253221 is a wasteful number, since it uses less digits than its factorization.

6253221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596.

The product of its digits is 720, while the sum is 21.

The square root of 6253221 is about 2500.6441170227. The cubic root of 6253221 is about 184.2332128722.

Adding to 6253221 its reverse (1223526), we get a palindrome (7476747).

The spelling of 6253221 in words is "six million, two hundred fifty-three thousand, two hundred twenty-one".