53871648 has 48 divisors (see below), whose sum is σ = 143138016. Its totient is φ = 17738240.

The previous prime is 53871641. The next prime is 53871659. The reversal of 53871648 is 84617835.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (53871641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4588 + ... + 11348.

It is an arithmetic number, because the mean of its divisors is an integer number (2982042).

Almost surely, 2^53871648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53871648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71569008).

53871648 is an abundant number, since it is smaller than the sum of its proper divisors (89266368).

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

53871648 is a wasteful number, since it uses less digits than its factorization.

53871648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857 (or 6849 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 53871648 is about 7339.7307852536. The cubic root of 53871648 is about 377.6766081519.

The spelling of 53871648 in words is "fifty-three million, eight hundred seventy-one thousand, six hundred forty-eight".