57227828 has 12 divisors (see below), whose sum is σ = 114455712. Its totient is φ = 24526200.

The previous prime is 57227813. The next prime is 57227843. The reversal of 57227828 is 82872275.

It is a happy number.

57227828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57227813) and next prime (57227843).

57227828 is an admirable number.

It is a congruent number.

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, 1021898 + ... + 1021953.

It is an arithmetic number, because the mean of its divisors is an integer number (9537976).

Almost surely, 2^57227828 is an apocalyptic number.

It is an amenable number.

57227828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57227828 is a wasteful number, since it uses less digits than its factorization.

57227828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043862 (or 2043860 counting only the distinct ones).

The product of its digits is 125440, while the sum is 41.

The square root of 57227828 is about 7564.9076663235. The cubic root of 57227828 is about 385.3621778780.

The spelling of 57227828 in words is "fifty-seven million, two hundred twenty-seven thousand, eight hundred twenty-eight".