500222520 has 256 divisors, whose sum is σ = 1924300800. Its totient is φ = 113218560.

The previous prime is 500222507. The next prime is 500222531. The reversal of 500222520 is 25222005.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 500222493 and 500222502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 959860 + ... + 960380.

It is an arithmetic number, because the mean of its divisors is an integer number (7516800).

Almost surely, 2^500222520 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 500222520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (962150400).

500222520 is an abundant number, since it is smaller than the sum of its proper divisors (1424078280).

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

500222520 is a wasteful number, since it uses less digits than its factorization.

500222520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 500222520 is about 22365.6549199884. The cubic root of 500222520 is about 793.8182513490.

Adding to 500222520 its reverse (25222005), we get a palindrome (525444525).

The spelling of 500222520 in words is "five hundred million, two hundred twenty-two thousand, five hundred twenty".