53215144520 has 64 divisors (see below), whose sum is σ = 126790876800. Its totient is φ = 20044938240.

The previous prime is 53215144447. The next prime is 53215144547. The reversal of 53215144520 is 2544151235.

53215144520 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82721 + ... + 336560.

It is an arithmetic number, because the mean of its divisors is an integer number (1981107450).

Almost surely, 2^53215144520 is an apocalyptic number.

It is an amenable number.

53215144520 is an abundant number, since it is smaller than the sum of its proper divisors (73575732280).

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

53215144520 is a wasteful number, since it uses less digits than its factorization.

53215144520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419478 (or 419474 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 53215144520 its reverse (2544151235), we get a palindrome (55759295755).

The spelling of 53215144520 in words is "fifty-three billion, two hundred fifteen million, one hundred forty-four thousand, five hundred twenty".