503005998 has 48 divisors (see below), whose sum is σ = 1147337856. Its totient is φ = 145788720.

The previous prime is 503005967. The next prime is 503006011. The reversal of 503005998 is 899500305.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27711 + ... + 42117.

It is an arithmetic number, because the mean of its divisors is an integer number (23902872).

Almost surely, 2^503005998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503005998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573668928).

503005998 is an abundant number, since it is smaller than the sum of its proper divisors (644331858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503005998 is a wasteful number, since it uses less digits than its factorization.

503005998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14469 (or 14446 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 503005998 is about 22427.7952104080. The cubic root of 503005998 is about 795.2879238739.

The spelling of 503005998 in words is "five hundred three million, five thousand, nine hundred ninety-eight".