20050051005 has 48 divisors (see below), whose sum is σ = 36813469680. Its totient is φ = 10060038144.

The previous prime is 20050051003. The next prime is 20050051033. The reversal of 20050051005 is 50015005002.

It can be written as a sum of positive squares in 8 ways, for example, as 1569823641 + 18480227364 = 39621^2 + 135942^2 .

It is not a de Polignac number, because 20050051005 - 2¹ = 20050051003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050051003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2542749 + ... + 2550621.

It is an arithmetic number, because the mean of its divisors is an integer number (766947285).

Almost surely, 2^20050051005 is an apocalyptic number.

It is an amenable number.

20050051005 is a deficient number, since it is larger than the sum of its proper divisors (16763418675).

20050051005 is a wasteful number, since it uses less digits than its factorization.

20050051005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11230 (or 11227 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

Adding to 20050051005 its reverse (50015005002), we get a palindrome (70065056007).

The spelling of 20050051005 in words is "twenty billion, fifty million, fifty-one thousand, five".