57230712 has 320 divisors, whose sum is σ = 211875840. Its totient is φ = 13996800.

The previous prime is 57230699. The next prime is 57230713. The reversal of 57230712 is 21703275.

57230712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57230713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1546758 + ... + 1546794.

It is an arithmetic number, because the mean of its divisors is an integer number (662112).

Almost surely, 2^57230712 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 57230712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105937920).

57230712 is an abundant number, since it is smaller than the sum of its proper divisors (154645128).

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

57230712 is a wasteful number, since it uses less digits than its factorization.

57230712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 57230712 is about 7565.0982809214. The cubic root of 57230712 is about 385.3686512197.

Adding to 57230712 its reverse (21703275), we get a palindrome (78933987).

The spelling of 57230712 in words is "fifty-seven million, two hundred thirty thousand, seven hundred twelve".