50540420121 has 16 divisors (see below), whose sum is σ = 68350380480. Its totient is φ = 33214325760.

The previous prime is 50540420059. The next prime is 50540420159. The reversal of 50540420121 is 12102404505.

It is not a de Polignac number, because 50540420121 - 2¹⁸ = 50540157977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50540420091 and 50540420100.

It is not an unprimeable number, because it can be changed into a prime (50540420921) 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 15 ways as a sum of consecutive naturals, for example, 197560 + ... + 374313.

It is an arithmetic number, because the mean of its divisors is an integer number (4271898780).

Almost surely, 2^50540420121 is an apocalyptic number.

It is an amenable number.

50540420121 is a deficient number, since it is larger than the sum of its proper divisors (17809960359).

50540420121 is a wasteful number, since it uses less digits than its factorization.

50540420121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572296.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 50540420121 its reverse (12102404505), we get a palindrome (62642824626).

It can be divided in two parts, 505404 and 20121, that added together give a palindrome (525525).

The spelling of 50540420121 in words is "fifty billion, five hundred forty million, four hundred twenty thousand, one hundred twenty-one".