53055305520 has 80 divisors (see below), whose sum is σ = 187967374080. Its totient is φ = 12126926592.

The previous prime is 53055305503. The next prime is 53055305521. The reversal of 53055305520 is 2550355035.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (53055305521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15788590 + ... + 15791949.

It is an arithmetic number, because the mean of its divisors is an integer number (2349592176).

Almost surely, 2^53055305520 is an apocalyptic number.

It is an amenable number.

53055305520 is an abundant number, since it is smaller than the sum of its proper divisors (134912068560).

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

53055305520 is a wasteful number, since it uses less digits than its factorization.

53055305520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31580562 (or 31580556 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 33.

The spelling of 53055305520 in words is "fifty-three billion, fifty-five million, three hundred five thousand, five hundred twenty".