57148224 has 112 divisors (see below), whose sum is σ = 174930816. Its totient is φ = 16128000.

The previous prime is 57148187. The next prime is 57148249. The reversal of 57148224 is 42284175.

It is a tau number, because it is divible by the number of its divisors (112).

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, 135534 + ... + 135954.

Almost surely, 2^57148224 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 57148224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87465408).

57148224 is an abundant number, since it is smaller than the sum of its proper divisors (117782592).

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

57148224 is a wasteful number, since it uses less digits than its factorization.

57148224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 534 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 57148224 is about 7559.6444360830. The cubic root of 57148224 is about 385.1834151646.

The spelling of 57148224 in words is "fifty-seven million, one hundred forty-eight thousand, two hundred twenty-four".