53853838521 has 12 divisors (see below), whose sum is σ = 83528402832. Its totient is φ = 30773621928.

The previous prime is 53853838499. The next prime is 53853838523. The reversal of 53853838521 is 12583835835.

53853838521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53853838521 - 2²⁹ = 53316967609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53853838523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183176175 + ... + 183176468.

It is an arithmetic number, because the mean of its divisors is an integer number (6960700236).

Almost surely, 2^53853838521 is an apocalyptic number.

It is an amenable number.

53853838521 is a deficient number, since it is larger than the sum of its proper divisors (29674564311).

53853838521 is a wasteful number, since it uses less digits than its factorization.

53853838521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366352660 (or 366352653 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 51.

The spelling of 53853838521 in words is "fifty-three billion, eight hundred fifty-three million, eight hundred thirty-eight thousand, five hundred twenty-one".