5100020020 has 12 divisors (see below), whose sum is σ = 10710042084. Its totient is φ = 2040008000.

The previous prime is 5100019987. The next prime is 5100020041. The reversal of 5100020020 is 200200015.

It can be written as a sum of positive squares in 2 ways, for example, as 2524660516 + 2575359504 = 50246^2 + 50748^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

5100020020 is a modest number, since divided by 20020 gives 5100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 5100019979 and 5100020006.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 127500481 + ... + 127500520.

It is an arithmetic number, because the mean of its divisors is an integer number (892503507).

Almost surely, 2^5100020020 is an apocalyptic number.

It is an amenable number.

5100020020 is an abundant number, since it is smaller than the sum of its proper divisors (5610022064).

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

5100020020 is a wasteful number, since it uses less digits than its factorization.

5100020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255001010 (or 255001008 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 5100020020 is about 71414.4244533274. The cubic root of 5100020020 is about 1721.3028730396.

Adding to 5100020020 its reverse (200200015), we get a palindrome (5300220035).

The spelling of 5100020020 in words is "five billion, one hundred million, twenty thousand, twenty".