57191252 has 6 divisors (see below), whose sum is σ = 100084698. Its totient is φ = 28595624.

The previous prime is 57191243. The next prime is 57191261. The reversal of 57191252 is 25219175.

It is a happy number.

57191252 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 (57191243) and next prime (57191261).

It can be written as a sum of positive squares in only one way, i.e., 51208336 + 5982916 = 7156^2 + 2446^2 .

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 as a sum of consecutive naturals, namely, 7148903 + ... + 7148910.

It is an arithmetic number, because the mean of its divisors is an integer number (16680783).

Almost surely, 2^57191252 is an apocalyptic number.

It is an amenable number.

57191252 is a deficient number, since it is larger than the sum of its proper divisors (42893446).

57191252 is a wasteful number, since it uses less digits than its factorization.

57191252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14297817 (or 14297815 counting only the distinct ones).

The product of its digits is 6300, while the sum is 32.

The square root of 57191252 is about 7562.4898016460. The cubic root of 57191252 is about 385.2800615870.

The spelling of 57191252 in words is "fifty-seven million, one hundred ninety-one thousand, two hundred fifty-two".