50000000020 has 12 divisors (see below), whose sum is σ = 105000000084. Its totient is φ = 20000000000.

The previous prime is 49999999967. The next prime is 50000000021. The reversal of 50000000020 is 2000000005.

It can be written as a sum of positive squares in 2 ways, for example, as 39999200004 + 10000800016 = 199998^2 + 100004^2 .

It is a sliding number, since 50000000020 = 20 + 50000000000 and 1/20 + 1/50000000000 = 0.050000000020.

It is a junction number, because it is equal to n+sod(n) for n = 49999999940 and 50000000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50000000021) 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 3 ways as a sum of consecutive naturals, for example, 1249999981 + ... + 1250000020.

It is an arithmetic number, because the mean of its divisors is an integer number (8750000007).

Almost surely, 2^50000000020 is an apocalyptic number.

It is an amenable number.

50000000020 is an abundant number, since it is smaller than the sum of its proper divisors (55000000064).

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

50000000020 is a wasteful number, since it uses less digits than its factorization.

50000000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500000010 (or 2500000008 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 7.

Adding to 50000000020 its reverse (2000000005), we get a palindrome (52000000025).

It can be divided in two parts, 500000000 and 20, that multiplied together give a 10-th power (10000000000 = 10¹⁰).

The spelling of 50000000020 in words is "fifty billion, twenty", and thus it is an aban number and an uban number.