57003 has 4 divisors (see below), whose sum is σ = 76008. Its totient is φ = 38000.

The previous prime is 56999. The next prime is 57037. The reversal of 57003 is 30075.

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

It is a cyclic number.

It is not a de Polignac number, because 57003 - 2² = 56999 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (57073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9498 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (19002).

2⁵⁷⁰⁰³ is an apocalyptic number.

57003 is a deficient number, since it is larger than the sum of its proper divisors (19005).

57003 is a wasteful number, since it uses less digits than its factorization.

57003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19004.

The product of its (nonzero) digits is 105, while the sum is 15.

The square root of 57003 is about 238.7530104522. The cubic root of 57003 is about 38.4856864766.

Adding to 57003 its reverse (30075), we get a palindrome (87078).

The spelling of 57003 in words is "fifty-seven thousand, three".