504221536 has 96 divisors (see below), whose sum is σ = 1227744000. Its totient is φ = 198498816.

The previous prime is 504221519. The next prime is 504221537. The reversal of 504221536 is 635122405.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504221537) 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, 1010215 + ... + 1010713.

It is an arithmetic number, because the mean of its divisors is an integer number (12789000).

Almost surely, 2^504221536 is an apocalyptic number.

504221536 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 504221536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613872000).

504221536 is an abundant number, since it is smaller than the sum of its proper divisors (723522464).

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

504221536 is a wasteful number, since it uses less digits than its factorization.

504221536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 504221536 is about 22454.8777774451. The cubic root of 504221536 is about 795.9280256127.

The spelling of 504221536 in words is "five hundred four million, two hundred twenty-one thousand, five hundred thirty-six".