53240844520 has 32 divisors (see below), whose sum is σ = 119813490720. Its totient is φ = 21292499520.

The previous prime is 53240844451. The next prime is 53240844523. The reversal of 53240844520 is 2544804235.

It is a self number, because there is not a number n which added to its sum of digits gives 53240844520.

It is not an unprimeable number, because it can be changed into a prime (53240844523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110215 + ... + 344425.

It is an arithmetic number, because the mean of its divisors is an integer number (3744171585).

Almost surely, 2^53240844520 is an apocalyptic number.

It is an amenable number.

53240844520 is an abundant number, since it is smaller than the sum of its proper divisors (66572646200).

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

53240844520 is a wasteful number, since it uses less digits than its factorization.

53240844520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239905 (or 239901 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 37.

The spelling of 53240844520 in words is "fifty-three billion, two hundred forty million, eight hundred forty-four thousand, five hundred twenty".