50505000001 has 4 divisors (see below), whose sum is σ = 53475882372. Its totient is φ = 47534117632.

The previous prime is 50504999977. The next prime is 50505000011. The reversal of 50505000001 is 10000050505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17726259600 + 32778740401 = 133140^2 + 181049^2 .

It is a cyclic number.

It is not a de Polignac number, because 50505000001 - 2¹⁷ = 50504868929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50505000011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485441160 + ... + 1485441193.

It is an arithmetic number, because the mean of its divisors is an integer number (13368970593).

Almost surely, 2^50505000001 is an apocalyptic number.

It is an amenable number.

50505000001 is a deficient number, since it is larger than the sum of its proper divisors (2970882371).

50505000001 is a wasteful number, since it uses less digits than its factorization.

50505000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970882370.

The product of its (nonzero) digits is 125, while the sum is 16.

Adding to 50505000001 its reverse (10000050505), we get a palindrome (60505050506).

The spelling of 50505000001 in words is "fifty billion, five hundred five million, one", and thus it is an aban number.