503801856 has 120 divisors (see below), whose sum is σ = 1505313810. Its totient is φ = 167878656.

The previous prime is 503801849. The next prime is 503801861. The reversal of 503801856 is 658108305.

It can be written as a sum of positive squares in only one way, i.e., 350438400 + 153363456 = 18720^2 + 12384^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 503801856.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 164370 + ... + 167406.

Almost surely, 2^503801856 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 503801856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752656905).

503801856 is an abundant number, since it is smaller than the sum of its proper divisors (1001511954).

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

503801856 is an equidigital number, since it uses as much as digits as its factorization.

503801856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071 (or 3042 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 503801856 is about 22445.5308691953. The cubic root of 503801856 is about 795.7071387148.

The spelling of 503801856 in words is "five hundred three million, eight hundred one thousand, eight hundred fifty-six".