50538821106172 has 36 divisors (see below), whose sum is σ = 104443391020080. Its totient is φ = 20960801369280.

The previous prime is 50538821106143. The next prime is 50538821106211. The reversal of 50538821106172 is 27160112883505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 939077097 + ... + 939130912.

Almost surely, 2^{50538821106172} is an apocalyptic number.

It is an amenable number.

50538821106172 is an abundant number, since it is smaller than the sum of its proper divisors (53904569913908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50538821106172 is a wasteful number, since it uses less digits than its factorization.

50538821106172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878208082 (or 1878208049 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 49.

Adding to 50538821106172 its reverse (27160112883505), we get a palindrome (77698933989677).

The spelling of 50538821106172 in words is "fifty trillion, five hundred thirty-eight billion, eight hundred twenty-one million, one hundred six thousand, one hundred seventy-two".