57243648 has 192 divisors, whose sum is σ = 191842560. Its totient is φ = 14868480.

The previous prime is 57243623. The next prime is 57243649. The reversal of 57243648 is 84634275.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57243649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5203963 + ... + 5203973.

It is an arithmetic number, because the mean of its divisors is an integer number (999180).

Almost surely, 2^57243648 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 57243648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95921280).

57243648 is an abundant number, since it is smaller than the sum of its proper divisors (134598912).

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

57243648 is an equidigital number, since it uses as much as digits as its factorization.

57243648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 23 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 57243648 is about 7565.9532115920. The cubic root of 57243648 is about 385.3976843101.

The spelling of 57243648 in words is "fifty-seven million, two hundred forty-three thousand, six hundred forty-eight".