503113803 has 16 divisors (see below), whose sum is σ = 701031936. Its totient is φ = 320634720.

The previous prime is 503113777. The next prime is 503113811. The reversal of 503113803 is 308311305.

It is not a de Polignac number, because 503113803 - 2¹² = 503109707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503113813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35428 + ... + 47553.

It is an arithmetic number, because the mean of its divisors is an integer number (43814496).

Almost surely, 2^503113803 is an apocalyptic number.

503113803 is a deficient number, since it is larger than the sum of its proper divisors (197918133).

503113803 is a wasteful number, since it uses less digits than its factorization.

503113803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83074.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 503113803 is about 22430.1984610034. The cubic root of 503113803 is about 795.3447355824.

The spelling of 503113803 in words is "five hundred three million, one hundred thirteen thousand, eight hundred three".