50903 has 4 divisors (see below), whose sum is σ = 51480. Its totient is φ = 50328.

The previous prime is 50893. The next prime is 50909. The reversal of 50903 is 30905.

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 is a cyclic number.

It is not a de Polignac number, because 50903 - 2⁶ = 50839 is a prime.

It is a super-2 number, since 2×50903² = 5182230818, which contains 22 as substring.

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

It is a Duffinian number.

It is a plaindrome in base 12 and base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50909) 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, 125 + ... + 342.

It is an arithmetic number, because the mean of its divisors is an integer number (12870).

2⁵⁰⁹⁰³ is an apocalyptic number.

50903 is a deficient number, since it is larger than the sum of its proper divisors (577).

50903 is a wasteful number, since it uses less digits than its factorization.

50903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 50903 is about 225.6169319887. The cubic root of 50903 is about 37.0607718113.

It can be divided in two parts, 50 and 903, that multiplied together give a triangular number (45150 = T₃₀₀).

The spelling of 50903 in words is "fifty thousand, nine hundred three".