503538 has 32 divisors (see below), whose sum is σ = 1213440. Its totient is φ = 136080.

The previous prime is 503501. The next prime is 503543. The reversal of 503538 is 835305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483 + ... + 1113.

It is an arithmetic number, because the mean of its divisors is an integer number (37920).

2⁵⁰³⁵³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606720).

503538 is an abundant number, since it is smaller than the sum of its proper divisors (709902).

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

503538 is a wasteful number, since it uses less digits than its factorization.

503538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 503538 is about 709.6041149824. The cubic root of 503538 is about 79.5568202634.

The spelling of 503538 in words is "five hundred three thousand, five hundred thirty-eight".