51056724752129 has 2 divisors, whose sum is σ = 51056724752130. Its totient is φ = 51056724752128.

The previous prime is 51056724752093. The next prime is 51056724752167. The reversal of 51056724752129 is 92125742765015.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45836596494529 + 5220128257600 = 6770273^2 + 2284760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51056724752129 is a prime.

It is not a weakly prime, because it can be changed into another prime (51056724752729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25528362376064 + 25528362376065.

It is an arithmetic number, because the mean of its divisors is an integer number (25528362376065).

Almost surely, 2^{51056724752129} is an apocalyptic number.

It is an amenable number.

51056724752129 is a deficient number, since it is larger than the sum of its proper divisors (1).

51056724752129 is an equidigital number, since it uses as much as digits as its factorization.

51056724752129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 56.

The spelling of 51056724752129 in words is "fifty-one trillion, fifty-six billion, seven hundred twenty-four million, seven hundred fifty-two thousand, one hundred twenty-nine".