51452202205345 has 4 divisors (see below), whose sum is σ = 61742642646420. Its totient is φ = 41161761764272.

The previous prime is 51452202205267. The next prime is 51452202205363. The reversal of 51452202205345 is 54350220225415.

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 16311445020049 + 35140757185296 = 4038743^2 + 5927964^2 .

It is a cyclic number.

It is not a de Polignac number, because 51452202205345 - 2³³ = 51443612270753 is a prime.

It is a super-2 number, since 2×51452202205345² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51452202205298 and 51452202205307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5145220220530 + ... + 5145220220539.

It is an arithmetic number, because the mean of its divisors is an integer number (15435660661605).

Almost surely, 2^{51452202205345} is an apocalyptic number.

It is an amenable number.

51452202205345 is a deficient number, since it is larger than the sum of its proper divisors (10290440441075).

51452202205345 is a wasteful number, since it uses less digits than its factorization.

51452202205345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10290440441074.

The product of its (nonzero) digits is 480000, while the sum is 40.

The spelling of 51452202205345 in words is "fifty-one trillion, four hundred fifty-two billion, two hundred two million, two hundred five thousand, three hundred forty-five".