57517 has 4 divisors (see below), whose sum is σ = 58140. Its totient is φ = 56896.

The previous prime is 57503. The next prime is 57527. The reversal of 57517 is 71575.

57517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19881 + 37636 = 141^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 57517 - 2⁷ = 57389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57491 and 57500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57527) 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, 142 + ... + 367.

It is an arithmetic number, because the mean of its divisors is an integer number (14535).

2⁵⁷⁵¹⁷ is an apocalyptic number.

It is an amenable number.

57517 is a deficient number, since it is larger than the sum of its proper divisors (623).

57517 is a wasteful number, since it uses less digits than its factorization.

57517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its digits is 1225, while the sum is 25.

The square root of 57517 is about 239.8270209964. The cubic root of 57517 is about 38.6010165553.

The spelling of 57517 in words is "fifty-seven thousand, five hundred seventeen".