57250072 has 32 divisors (see below), whose sum is σ = 117403200. Its totient is φ = 25956000.

The previous prime is 57250057. The next prime is 57250073. The reversal of 57250072 is 27005275.

It is a self number, because there is not a number n which added to its sum of digits gives 57250072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57250073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53947 + ... + 54997.

It is an arithmetic number, because the mean of its divisors is an integer number (3668850).

Almost surely, 2^57250072 is an apocalyptic number.

It is an amenable number.

57250072 is an abundant number, since it is smaller than the sum of its proper divisors (60153128).

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

57250072 is a wasteful number, since it uses less digits than its factorization.

57250072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 57250072 is about 7566.3777331032. The cubic root of 57250072 is about 385.4121004780.

The spelling of 57250072 in words is "fifty-seven million, two hundred fifty thousand, seventy-two".