5221307520 has 512 divisors, whose sum is σ = 21735302400. Its totient is φ = 1167851520.

The previous prime is 5221307519. The next prime is 5221307527. The reversal of 5221307520 is 257031225.

5221307520 is a `hidden beast` number, since 5 + 2 + 2 + 130 + 7 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5221307527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2469984 + ... + 2472096.

Almost surely, 2^5221307520 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 5221307520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10867651200).

5221307520 is an abundant number, since it is smaller than the sum of its proper divisors (16513994880).

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

5221307520 is a wasteful number, since it uses less digits than its factorization.

5221307520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165 (or 2147 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 5221307520 is about 72258.6155416778. The cubic root of 5221307520 is about 1734.8413201611.

Adding to 5221307520 its reverse (257031225), we get a palindrome (5478338745).

The spelling of 5221307520 in words is "five billion, two hundred twenty-one million, three hundred seven thousand, five hundred twenty".