57231360 has 288 divisors, whose sum is σ = 214643520. Its totient is φ = 14598144.

The previous prime is 57231353. The next prime is 57231371. The reversal of 57231360 is 6313275.

It is a happy number.

57231360 is a `hidden beast` number, since 572 + 31 + 3 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2488309 + ... + 2488331.

It is an arithmetic number, because the mean of its divisors is an integer number (745290).

Almost surely, 2^57231360 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 57231360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107321760).

57231360 is an abundant number, since it is smaller than the sum of its proper divisors (157412160).

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

57231360 is an equidigital number, since it uses as much as digits as its factorization.

57231360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 57231360 is about 7565.1411090607. The cubic root of 57231360 is about 385.3701056715.

The spelling of 57231360 in words is "fifty-seven million, two hundred thirty-one thousand, three hundred sixty".