57245028 has 24 divisors (see below), whose sum is σ = 135455040. Its totient is φ = 18812640.

The previous prime is 57245011. The next prime is 57245047. The reversal of 57245028 is 82054275.

It is a self number, because there is not a number n which added to its sum of digits gives 57245028.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32743 + ... + 34446.

It is an arithmetic number, because the mean of its divisors is an integer number (5643960).

Almost surely, 2^57245028 is an apocalyptic number.

It is an amenable number.

57245028 is an abundant number, since it is smaller than the sum of its proper divisors (78210012).

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

57245028 is a wasteful number, since it uses less digits than its factorization.

57245028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67267 (or 67265 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 57245028 is about 7566.0444090687. The cubic root of 57245028 is about 385.4007812740.

The spelling of 57245028 in words is "fifty-seven million, two hundred forty-five thousand, twenty-eight".