50512426121 has 4 divisors (see below), whose sum is σ = 51151824000. Its totient is φ = 49873028244.

The previous prime is 50512426087. The next prime is 50512426201. The reversal of 50512426121 is 12162421505.

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 a de Polignac number, because none of the positive numbers 2^k-50512426121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50512426021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319698821 + ... + 319698978.

It is an arithmetic number, because the mean of its divisors is an integer number (12787956000).

Almost surely, 2^50512426121 is an apocalyptic number.

It is an amenable number.

50512426121 is a deficient number, since it is larger than the sum of its proper divisors (639397879).

50512426121 is an equidigital number, since it uses as much as digits as its factorization.

50512426121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639397878.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 50512426121 its reverse (12162421505), we get a palindrome (62674847626).

The spelling of 50512426121 in words is "fifty billion, five hundred twelve million, four hundred twenty-six thousand, one hundred twenty-one".