5200021305 has 24 divisors (see below), whose sum is σ = 9015137352. Its totient is φ = 2772801024.

The previous prime is 5200021303. The next prime is 5200021339. The reversal of 5200021305 is 5031200025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2458870569 + 2741150736 = 49587^2 + 52356^2 .

It is not a de Polignac number, because 5200021305 - 2¹ = 5200021303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5200021303) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 341617 + ... + 356513.

It is an arithmetic number, because the mean of its divisors is an integer number (375630723).

Almost surely, 2^5200021305 is an apocalyptic number.

It is an amenable number.

5200021305 is a deficient number, since it is larger than the sum of its proper divisors (3815116047).

5200021305 is a wasteful number, since it uses less digits than its factorization.

5200021305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22665 (or 22662 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5200021305 is about 72111.1732327245. The cubic root of 5200021305 is about 1732.4805767330.

The spelling of 5200021305 in words is "five billion, two hundred million, twenty-one thousand, three hundred five".