50100001001 has 4 divisors (see below), whose sum is σ = 50351760000. Its totient is φ = 49848242004.

The previous prime is 50100000887. The next prime is 50100001037. The reversal of 50100001001 is 10010000105.

It is a happy number.

50100001001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50100001001 - 2¹⁴ = 50099984617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50100001001.

It is not an unprimeable number, because it can be changed into a prime (50100001051) 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, 125879201 + ... + 125879598.

It is an arithmetic number, because the mean of its divisors is an integer number (12587940000).

Almost surely, 2^50100001001 is an apocalyptic number.

It is an amenable number.

50100001001 is a deficient number, since it is larger than the sum of its proper divisors (251758999).

50100001001 is a wasteful number, since it uses less digits than its factorization.

50100001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251758998.

The product of its (nonzero) digits is 5, while the sum is 8.

Adding to 50100001001 its reverse (10010000105), we get a palindrome (60110001106).

The spelling of 50100001001 in words is "fifty billion, one hundred million, one thousand, one".