51750227665121 has 4 divisors (see below), whose sum is σ = 52252657060032. Its totient is φ = 51247798270212.

The previous prime is 51750227665099. The next prime is 51750227665181. The reversal of 51750227665121 is 12156672205715.

51750227665121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51750227665121 - 2¹⁸ = 51750227402977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51750227665121.

It is not an unprimeable number, because it can be changed into a prime (51750227665181) 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 3 ways as a sum of consecutive naturals, for example, 251214697301 + ... + 251214697506.

It is an arithmetic number, because the mean of its divisors is an integer number (13063164265008).

Almost surely, 2^{51750227665121} is an apocalyptic number.

It is an amenable number.

51750227665121 is a deficient number, since it is larger than the sum of its proper divisors (502429394911).

51750227665121 is a wasteful number, since it uses less digits than its factorization.

51750227665121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502429394910.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The spelling of 51750227665121 in words is "fifty-one trillion, seven hundred fifty billion, two hundred twenty-seven million, six hundred sixty-five thousand, one hundred twenty-one".