5621248512 has 120 divisors (see below), whose sum is σ = 17698309200. Its totient is φ = 1703393280.

The previous prime is 5621248489. The next prime is 5621248513. The reversal of 5621248512 is 2158421265.

5621248512 is a `hidden beast` number, since 5 + 621 + 24 + 8 + 5 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5621248513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4762 + ... + 106137.

It is an arithmetic number, because the mean of its divisors is an integer number (147485910).

Almost surely, 2^5621248512 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 5621248512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8849154600).

5621248512 is an abundant number, since it is smaller than the sum of its proper divisors (12077060688).

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

5621248512 is a wasteful number, since it uses less digits than its factorization.

5621248512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110934 (or 110915 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 5621248512 is about 74974.9859086349. The cubic root of 5621248512 is about 1778.0511971316.

Adding to 5621248512 its reverse (2158421265), we get a palindrome (7779669777).

The spelling of 5621248512 in words is "five billion, six hundred twenty-one million, two hundred forty-eight thousand, five hundred twelve".