50501001001 has 16 divisors (see below), whose sum is σ = 56290590720. Its totient is φ = 44912094480.

The previous prime is 50501000993. The next prime is 50501001013. The reversal of 50501001001 is 10010010505.

It is not a de Polignac number, because 50501001001 - 2³ = 50501000993 is a prime.

It is a super-2 number, since 2×50501001001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50501001101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1135750 + ... + 1179376.

It is an arithmetic number, because the mean of its divisors is an integer number (3518161920).

Almost surely, 2^50501001001 is an apocalyptic number.

It is an amenable number.

50501001001 is a deficient number, since it is larger than the sum of its proper divisors (5789589719).

50501001001 is a wasteful number, since it uses less digits than its factorization.

50501001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45924.

The product of its (nonzero) digits is 25, while the sum is 13.

Adding to 50501001001 its reverse (10010010505), we get a palindrome (60511011506).

The spelling of 50501001001 in words is "fifty billion, five hundred one million, one thousand, one".