500440520000 has 140 divisors (see below), whose sum is σ = 1241644687140. Its totient is φ = 200060928000.

The previous prime is 500440519991. The next prime is 500440520093. The reversal of 500440520000 is 25044005.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 84993239296 + 415447280704 = 291536^2 + 644552^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 116677856 + ... + 116682144.

Almost surely, 2^500440520000 is an apocalyptic number.

500440520000 is a gapful number since it is divisible by the number (50) 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 500440520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620822343570).

500440520000 is an abundant number, since it is smaller than the sum of its proper divisors (741204167140).

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

500440520000 is an equidigital number, since it uses as much as digits as its factorization.

500440520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7238 (or 7213 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

Adding to 500440520000 its reverse (25044005), we get a palindrome (500465564005).

The spelling of 500440520000 in words is "five hundred billion, four hundred forty million, five hundred twenty thousand".