5019903 has 18 divisors (see below), whose sum is σ = 8435544. Its totient is φ = 2868264.

The previous prime is 5019899. The next prime is 5019919. The reversal of 5019903 is 3099105.

It is not a de Polignac number, because 5019903 - 2² = 5019899 is a prime.

It is a super-2 number, since 2×5019903² = 50398852258818, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5019943) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5251 + ... + 6132.

Almost surely, 2^5019903 is an apocalyptic number.

5019903 is a deficient number, since it is larger than the sum of its proper divisors (3415641).

5019903 is a wasteful number, since it uses less digits than its factorization.

5019903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11403 (or 11393 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 5019903 is about 2240.5140035269. The cubic root of 5019903 is about 171.2241852860.

It can be divided in two parts, 501 and 9903, that added together give a square (10404 = 102²).

The spelling of 5019903 in words is "five million, nineteen thousand, nine hundred three".