50500513423121 has 4 divisors (see below), whose sum is σ = 50502989808612. Its totient is φ = 50498037037632.

The previous prime is 50500513423057. The next prime is 50500513423123. The reversal of 50500513423121 is 12132431500505.

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 36942387900625 + 13558125522496 = 6078025^2 + 3682136^2 .

It is a cyclic number.

It is not a de Polignac number, because 50500513423121 - 2⁶ = 50500513423057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50500513423123) 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, 1238162156 + ... + 1238202941.

It is an arithmetic number, because the mean of its divisors is an integer number (12625747452153).

Almost surely, 2^{50500513423121} is an apocalyptic number.

It is an amenable number.

50500513423121 is a deficient number, since it is larger than the sum of its proper divisors (2476385491).

50500513423121 is a wasteful number, since it uses less digits than its factorization.

50500513423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476385490.

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 50500513423121 its reverse (12132431500505), we get a palindrome (62632944923626).

The spelling of 50500513423121 in words is "fifty trillion, five hundred billion, five hundred thirteen million, four hundred twenty-three thousand, one hundred twenty-one".