51225404334205 has 4 divisors (see below), whose sum is σ = 61470485201052. Its totient is φ = 40980323467360.

The previous prime is 51225404334149. The next prime is 51225404334263. The reversal of 51225404334205 is 50243340452215.

51225404334205 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.

It can be written as a sum of positive squares in 2 ways, for example, as 13492530475524 + 37732873858681 = 3673218^2 + 6142709^2 .

It is not a de Polignac number, because 51225404334205 - 2¹³ = 51225404326013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5122540433416 + ... + 5122540433425.

It is an arithmetic number, because the mean of its divisors is an integer number (15367621300263).

Almost surely, 2^{51225404334205} is an apocalyptic number.

It is an amenable number.

51225404334205 is a deficient number, since it is larger than the sum of its proper divisors (10245080866847).

51225404334205 is a wasteful number, since it uses less digits than its factorization.

51225404334205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245080866846.

The product of its (nonzero) digits is 576000, while the sum is 40.

The spelling of 51225404334205 in words is "fifty-one trillion, two hundred twenty-five billion, four hundred four million, three hundred thirty-four thousand, two hundred five".