503651328 has 88 divisors (see below), whose sum is σ = 1363007232. Its totient is φ = 165310464.

The previous prime is 503651321. The next prime is 503651341. The reversal of 503651328 is 823156305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503651321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204601 + ... + 207047.

Almost surely, 2^503651328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503651328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681503616).

503651328 is an abundant number, since it is smaller than the sum of its proper divisors (859355904).

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

503651328 is a wasteful number, since it uses less digits than its factorization.

503651328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537 (or 2519 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 503651328 is about 22442.1774344648. The cubic root of 503651328 is about 795.6278825987.

The spelling of 503651328 in words is "five hundred three million, six hundred fifty-one thousand, three hundred twenty-eight".