57056 has 12 divisors (see below), whose sum is σ = 112392. Its totient is φ = 28512.

The previous prime is 57047. The next prime is 57059. The reversal of 57056 is 65075.

57056 = T₄₃ + T₄₄ + ... + T₇₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57059) by changing a digit.

57056 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (9366).

2⁵⁷⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

57056 is a deficient number, since it is larger than the sum of its proper divisors (55336).

57056 is a wasteful number, since it uses less digits than its factorization.

57056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 57056 is about 238.8639780293. The cubic root of 57056 is about 38.4976104662.

It can be divided in two parts, 570 and 56, that added together give a palindrome (626).

The spelling of 57056 in words is "fifty-seven thousand, fifty-six".