5218221024 has 72 divisors (see below), whose sum is σ = 15351041160. Its totient is φ = 1679424768.

The previous prime is 5218221017. The next prime is 5218221061. The reversal of 5218221024 is 4201228125.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304042 + ... + 320745.

It is an arithmetic number, because the mean of its divisors is an integer number (213208905).

Almost surely, 2^5218221024 is an apocalyptic number.

It is an amenable number.

5218221024 is an abundant number, since it is smaller than the sum of its proper divisors (10132820136).

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

5218221024 is a wasteful number, since it uses less digits than its factorization.

5218221024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624832 (or 624821 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 5218221024 is about 72237.2550973526. The cubic root of 5218221024 is about 1734.4994111524.

Adding to 5218221024 its reverse (4201228125), we get a palindrome (9419449149).

The spelling of 5218221024 in words is "five billion, two hundred eighteen million, two hundred twenty-one thousand, twenty-four".