57055 has 4 divisors (see below), whose sum is σ = 68472. Its totient is φ = 45640.

The previous prime is 57047. The next prime is 57059. The reversal of 57055 is 55075.

57055 = 95² + 96² + ... + 100².

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57055 - 2³ = 57047 is a prime.

It is a Duffinian number.

It is a congruent number.

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

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, 5701 + ... + 5710.

It is an arithmetic number, because the mean of its divisors is an integer number (17118).

2⁵⁷⁰⁵⁵ is an apocalyptic number.

57055 is a deficient number, since it is larger than the sum of its proper divisors (11417).

57055 is a wasteful number, since it uses less digits than its factorization.

57055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11416.

The product of its (nonzero) digits is 875, while the sum is 22.

The square root of 57055 is about 238.8618847786. The cubic root of 57055 is about 38.4973855536.

It can be divided in two parts, 570 and 55, that added together give a 4-th power (625 = 5⁴).

The spelling of 57055 in words is "fifty-seven thousand, fifty-five".