53721022208 has 72 divisors (see below), whose sum is σ = 125052328800. Its totient is φ = 23023257600.

The previous prime is 53721022151. The next prime is 53721022217. The reversal of 53721022208 is 80222012735.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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, 218093 + ... + 393708.

It is an arithmetic number, because the mean of its divisors is an integer number (1736837900).

Almost surely, 2^53721022208 is an apocalyptic number.

It is an amenable number.

53721022208 is an abundant number, since it is smaller than the sum of its proper divisors (71331306592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53721022208 is an frugal number, since it uses more digits than its factorization.

53721022208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611838 (or 611810 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 53721022208 in words is "fifty-three billion, seven hundred twenty-one million, twenty-two thousand, two hundred eight".