50561120121 has 8 divisors (see below), whose sum is σ = 67516818624. Its totient is φ = 33656417520.

The previous prime is 50561120101. The next prime is 50561120143. The reversal of 50561120121 is 12102116505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50561120121 - 2¹¹ = 50561118073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50561120091 and 50561120100.

It is not an unprimeable number, because it can be changed into a prime (50561120101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12746661 + ... + 12750626.

It is an arithmetic number, because the mean of its divisors is an integer number (8439602328).

Almost surely, 2^50561120121 is an apocalyptic number.

It is an amenable number.

50561120121 is a deficient number, since it is larger than the sum of its proper divisors (16955698503).

50561120121 is a wasteful number, since it uses less digits than its factorization.

50561120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25497951.

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 50561120121 its reverse (12102116505), we get a palindrome (62663236626).

The spelling of 50561120121 in words is "fifty billion, five hundred sixty-one million, one hundred twenty thousand, one hundred twenty-one".