53747003005221 has 16 divisors (see below), whose sum is σ = 75694703912960. Its totient is φ = 33869079160560.

The previous prime is 53747003005151. The next prime is 53747003005261. The reversal of 53747003005221 is 12250030074735.

It is a de Polignac number, because none of the positive numbers 2^k-53747003005221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53747003005221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53747003005261) 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, 6720051391 + ... + 6720059388.

It is an arithmetic number, because the mean of its divisors is an integer number (4730918994560).

Almost surely, 2^{53747003005221} is an apocalyptic number.

It is an amenable number.

53747003005221 is a deficient number, since it is larger than the sum of its proper divisors (21947700907739).

53747003005221 is a wasteful number, since it uses less digits than its factorization.

53747003005221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440110856.

The product of its (nonzero) digits is 176400, while the sum is 39.

Adding to 53747003005221 its reverse (12250030074735), we get a palindrome (65997033079956).

The spelling of 53747003005221 in words is "fifty-three trillion, seven hundred forty-seven billion, three million, five thousand, two hundred twenty-one".