57305142 has 24 divisors (see below), whose sum is σ = 125559720. Its totient is φ = 18886560.

The previous prime is 57305141. The next prime is 57305161. The reversal of 57305142 is 24150375.

It is a happy number.

57305142 is a `hidden beast` number, since 573 + 0 + 51 + 42 = 666.

57305142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57305141) 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 11 ways as a sum of consecutive naturals, for example, 16284 + ... + 19487.

It is an arithmetic number, because the mean of its divisors is an integer number (5231655).

Almost surely, 2^57305142 is an apocalyptic number.

57305142 is an abundant number, since it is smaller than the sum of its proper divisors (68254578).

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

57305142 is a wasteful number, since it uses less digits than its factorization.

57305142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35868 (or 35865 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 57305142 is about 7570.0159841311. The cubic root of 57305142 is about 385.5356394349.

The spelling of 57305142 in words is "fifty-seven million, three hundred five thousand, one hundred forty-two".