520276224 has 216 divisors, whose sum is σ = 1577771776. Its totient is φ = 151142400.

The previous prime is 520276217. The next prime is 520276271. The reversal of 520276224 is 422672025.

It is a junction number, because it is equal to n+sod(n) for n = 520276191 and 520276200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12689644 + ... + 12689684.

Almost surely, 2^520276224 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 520276224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788885888).

520276224 is an abundant number, since it is smaller than the sum of its proper divisors (1057495552).

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

520276224 is a wasteful number, since it uses less digits than its factorization.

520276224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 520276224 is about 22809.5643097364. The cubic root of 520276224 is about 804.2875138147.

The spelling of 520276224 in words is "five hundred twenty million, two hundred seventy-six thousand, two hundred twenty-four".