57831648 has 96 divisors (see below), whose sum is σ = 177811200. Its totient is φ = 16112640.

The previous prime is 57831619. The next prime is 57831707. The reversal of 57831648 is 84613875.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 26503 + ... + 28601.

It is an arithmetic number, because the mean of its divisors is an integer number (1852200).

Almost surely, 2^57831648 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 57831648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88905600).

57831648 is an abundant number, since it is smaller than the sum of its proper divisors (119979552).

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

57831648 is a wasteful number, since it uses less digits than its factorization.

57831648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2152 counting only the distinct ones).

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

The square root of 57831648 is about 7604.7122233520. The cubic root of 57831648 is about 386.7127782239.

The spelling of 57831648 in words is "fifty-seven million, eight hundred thirty-one thousand, six hundred forty-eight".