50004515142121 has 4 divisors (see below), whose sum is σ = 50004558554500. Its totient is φ = 50004471729744.

The previous prime is 50004515142091. The next prime is 50004515142163. The reversal of 50004515142121 is 12124151540005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27002947102096 + 23001568040025 = 5196436^2 + 4795995^2 .

It is a cyclic number.

It is not a de Polignac number, because 50004515142121 - 2¹³ = 50004515133929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50004515142521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19929966 + ... + 22298263.

It is an arithmetic number, because the mean of its divisors is an integer number (12501139638625).

Almost surely, 2^{50004515142121} is an apocalyptic number.

It is an amenable number.

50004515142121 is a deficient number, since it is larger than the sum of its proper divisors (43412379).

50004515142121 is a wasteful number, since it uses less digits than its factorization.

50004515142121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43412378.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 50004515142121 its reverse (12124151540005), we get a palindrome (62128666682126).

The spelling of 50004515142121 in words is "fifty trillion, four billion, five hundred fifteen million, one hundred forty-two thousand, one hundred twenty-one".