51234205350061 has 4 divisors (see below), whose sum is σ = 53000902086300. Its totient is φ = 49467508613824.

The previous prime is 51234205349989. The next prime is 51234205350103. The reversal of 51234205350061 is 16005350243215.

51234205350061 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 38227139496100 + 13007065853961 = 6182810^2 + 3606531^2 .

It is a cyclic number.

It is not a de Polignac number, because 51234205350061 - 2²⁵ = 51234171795629 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 51234205350061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234205350761) 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, 883348368076 + ... + 883348368133.

It is an arithmetic number, because the mean of its divisors is an integer number (13250225521575).

Almost surely, 2^{51234205350061} is an apocalyptic number.

It is an amenable number.

51234205350061 is a deficient number, since it is larger than the sum of its proper divisors (1766696736239).

51234205350061 is a wasteful number, since it uses less digits than its factorization.

51234205350061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766696736238.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 51234205350061 its reverse (16005350243215), we get a palindrome (67239555593276).

The spelling of 51234205350061 in words is "fifty-one trillion, two hundred thirty-four billion, two hundred five million, three hundred fifty thousand, sixty-one".