57305242 has 8 divisors (see below), whose sum is σ = 86337216. Its totient is φ = 28526172.

The previous prime is 57305201. The next prime is 57305263. The reversal of 57305242 is 24250375.

57305242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57305242.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 62658 + ... + 63565.

It is an arithmetic number, because the mean of its divisors is an integer number (10792152).

Almost surely, 2^57305242 is an apocalyptic number.

57305242 is a deficient number, since it is larger than the sum of its proper divisors (29031974).

57305242 is a wasteful number, since it uses less digits than its factorization.

57305242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126452.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 57305242 is about 7570.0225891341. The cubic root of 57305242 is about 385.5358636937.

The spelling of 57305242 in words is "fifty-seven million, three hundred five thousand, two hundred forty-two".