57538 has 8 divisors (see below), whose sum is σ = 92988.
Its totient is φ = 26544.
The previous prime is 57529. The next prime is 57557. The reversal of 57538 is 83575.
It can be divided in two parts, 57 and 538, that added together give a palindrome (595).
It can be written as a sum of positive squares in 2 ways, for example, as 56169 + 1369 = 237^2 + 37^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081 + ... + 1132.
257538 is an apocalyptic number.
57538 is a deficient number, since it is larger than the sum of its proper divisors (35450).
57538 is a wasteful number, since it uses less digits than its factorization.
57538 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2228.
The product of its digits is 4200, while the sum is 28.
The square root of 57538 is about 239.8707985562.
The cubic root of 57538 is about 38.6057138490.
The spelling of 57538 in words is "fifty-seven thousand, five hundred thirty-eight".