63245221 has 8 divisors (see below), whose sum is σ = 69560064. Its totient is φ = 57137520.

The previous prime is 63245213. The next prime is 63245233. The reversal of 63245221 is 12254236.

63245221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63245221 - 2³ = 63245213 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 (63245251) 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 7 ways as a sum of consecutive naturals, for example, 51145 + ... + 52366.

It is an arithmetic number, because the mean of its divisors is an integer number (8695008).

Almost surely, 2^63245221 is an apocalyptic number.

It is an amenable number.

63245221 is a deficient number, since it is larger than the sum of its proper divisors (6314843).

63245221 is a wasteful number, since it uses less digits than its factorization.

63245221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103571.

The product of its digits is 2880, while the sum is 25.

The square root of 63245221 is about 7952.6864014621. The cubic root of 63245221 is about 398.4213213813.

Adding to 63245221 its reverse (12254236), we get a palindrome (75499457).

The spelling of 63245221 in words is "sixty-three million, two hundred forty-five thousand, two hundred twenty-one".