57447488 has 112 divisors (see below), whose sum is σ = 145572480. Its totient is φ = 21897216.

The previous prime is 57447473. The next prime is 57447541. The reversal of 57447488 is 88474475.

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

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, 144506 + ... + 144902.

Almost surely, 2^57447488 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 57447488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72786240).

57447488 is an abundant number, since it is smaller than the sum of its proper divisors (88124992).

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

57447488 is a wasteful number, since it uses less digits than its factorization.

57447488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 442 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 47.

The square root of 57447488 is about 7579.4121144057. The cubic root of 57447488 is about 385.8545990525.

The spelling of 57447488 in words is "fifty-seven million, four hundred forty-seven thousand, four hundred eighty-eight".