30053221 has 8 divisors (see below), whose sum is σ = 33181344. Its totient is φ = 26991120.

The previous prime is 30053209. The next prime is 30053267. The reversal of 30053221 is 12235003.

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 30053221 - 2⁹ = 30052709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30053195 and 30053204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30053201) 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, 15546 + ... + 17371.

It is an arithmetic number, because the mean of its divisors is an integer number (4147668).

Almost surely, 2^30053221 is an apocalyptic number.

It is an amenable number.

30053221 is a deficient number, since it is larger than the sum of its proper divisors (3128123).

30053221 is a wasteful number, since it uses less digits than its factorization.

30053221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33011.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30053221 is about 5482.0818125964. The cubic root of 30053221 is about 310.9068865141.

Adding to 30053221 its reverse (12235003), we get a palindrome (42288224).

It can be divided in two parts, 3005 and 3221, that added together give a palindrome (6226).

The spelling of 30053221 in words is "thirty million, fifty-three thousand, two hundred twenty-one".