53215516918500 has 96 divisors (see below), whose sum is σ = 155035570330368. Its totient is φ = 14184212473600.

The previous prime is 53215516918373. The next prime is 53215516918513. The reversal of 53215516918500 is 581961551235.

53215516918500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5009472 + ... + 11468471.

It is an arithmetic number, because the mean of its divisors is an integer number (1614953857608).

Almost surely, 2^{53215516918500} is an apocalyptic number.

53215516918500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53215516918500 is an abundant number, since it is smaller than the sum of its proper divisors (101820053411868).

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

53215516918500 is a wasteful number, since it uses less digits than its factorization.

53215516918500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16480118 (or 16480106 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 51.

The spelling of 53215516918500 in words is "fifty-three trillion, two hundred fifteen billion, five hundred sixteen million, nine hundred eighteen thousand, five hundred".