56103 has 4 divisors (see below), whose sum is σ = 74808. Its totient is φ = 37400.

The previous prime is 56101. The next prime is 56113. The reversal of 56103 is 30165.

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 56103 - 2¹ = 56101 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

56103 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56101) 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, 9348 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (18702).

2⁵⁶¹⁰³ is an apocalyptic number.

56103 is a deficient number, since it is larger than the sum of its proper divisors (18705).

56103 is a wasteful number, since it uses less digits than its factorization.

56103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18704.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 56103 is about 236.8607185668. The cubic root of 56103 is about 38.2820654692.

Adding to 56103 its reverse (30165), we get a palindrome (86268).

The spelling of 56103 in words is "fifty-six thousand, one hundred three".