5021220540 has 192 divisors, whose sum is σ = 16314439680. Its totient is φ = 1130250240.

The previous prime is 5021220517. The next prime is 5021220557. The reversal of 5021220540 is 450221205.

It is a happy number.

It is a super-2 number, since 2×5021220540² = 50425311422635783200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11437641 + ... + 11438079.

It is an arithmetic number, because the mean of its divisors is an integer number (84971040).

Almost surely, 2^5021220540 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 5021220540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8157219840).

5021220540 is an abundant number, since it is smaller than the sum of its proper divisors (11293219140).

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

5021220540 is a wasteful number, since it uses less digits than its factorization.

5021220540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 5021220540 is about 70860.5711238627. The cubic root of 5021220540 is about 1712.3916399370.

Adding to 5021220540 its reverse (450221205), we get a palindrome (5471441745).

The spelling of 5021220540 in words is "five billion, twenty-one million, two hundred twenty thousand, five hundred forty".