50031201513 has 16 divisors (see below), whose sum is σ = 69613822080. Its totient is φ = 31901574144.

The previous prime is 50031201509. The next prime is 50031201523. The reversal of 50031201513 is 31510213005.

It is not a de Polignac number, because 50031201513 - 2² = 50031201509 is a prime.

It is a super-2 number, since 2×50031201513² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50031201513.

It is not an unprimeable number, because it can be changed into a prime (50031201523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1673545 + ... + 1703177.

It is an arithmetic number, because the mean of its divisors is an integer number (4350863880).

Almost surely, 2^50031201513 is an apocalyptic number.

It is an amenable number.

50031201513 is a deficient number, since it is larger than the sum of its proper divisors (19582620567).

50031201513 is a wasteful number, since it uses less digits than its factorization.

50031201513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54128.

The product of its (nonzero) digits is 450, while the sum is 21.

Adding to 50031201513 its reverse (31510213005), we get a palindrome (81541414518).

The spelling of 50031201513 in words is "fifty billion, thirty-one million, two hundred one thousand, five hundred thirteen".