5621520300 has 144 divisors (see below), whose sum is σ = 17795027712. Its totient is φ = 1358841600.

The previous prime is 5621520277. The next prime is 5621520319. The reversal of 5621520300 is 30251265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1228617 + ... + 1233183.

Almost surely, 2^5621520300 is an apocalyptic number.

5621520300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5621520300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8897513856).

5621520300 is an abundant number, since it is smaller than the sum of its proper divisors (12173507412).

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

5621520300 is a wasteful number, since it uses less digits than its factorization.

5621520300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4968 (or 4961 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 5621520300 is about 74976.7984112419. The cubic root of 5621520300 is about 1778.0798529951.

Adding to 5621520300 its reverse (30251265), we get a palindrome (5651771565).

The spelling of 5621520300 in words is "five billion, six hundred twenty-one million, five hundred twenty thousand, three hundred".