57133244 has 12 divisors (see below), whose sum is σ = 114266544. Its totient is φ = 24485664.

The previous prime is 57133229. The next prime is 57133249. The reversal of 57133244 is 44233175.

It is a happy number.

57133244 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57133249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1020209 + ... + 1020264.

It is an arithmetic number, because the mean of its divisors is an integer number (9522212).

Almost surely, 2^57133244 is an apocalyptic number.

It is an amenable number.

57133244 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.

57133244 is a wasteful number, since it uses less digits than its factorization.

57133244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040484 (or 2040482 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 57133244 is about 7558.6535838071. The cubic root of 57133244 is about 385.1497567737.

The spelling of 57133244 in words is "fifty-seven million, one hundred thirty-three thousand, two hundred forty-four".