57303301221 has 6 divisors (see below), whose sum is σ = 82771435110. Its totient is φ = 38202200808.

The previous prime is 57303301219. The next prime is 57303301243. The reversal of 57303301221 is 12210330375.

57303301221 is a `hidden beast` number, since 57 + 303 + 301 + 2 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44368788321 + 12934512900 = 210639^2 + 113730^2 .

It is not a de Polignac number, because 57303301221 - 2¹ = 57303301219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57303301201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3183516726 + ... + 3183516743.

It is an arithmetic number, because the mean of its divisors is an integer number (13795239185).

Almost surely, 2^57303301221 is an apocalyptic number.

It is an amenable number.

57303301221 is a deficient number, since it is larger than the sum of its proper divisors (25468133889).

57303301221 is a wasteful number, since it uses less digits than its factorization.

57303301221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6367033475 (or 6367033472 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

Adding to 57303301221 its reverse (12210330375), we get a palindrome (69513631596).

The spelling of 57303301221 in words is "fifty-seven billion, three hundred three million, three hundred one thousand, two hundred twenty-one".