51154553045201 has 2 divisors, whose sum is σ = 51154553045202. Its totient is φ = 51154553045200.

The previous prime is 51154553045177. The next prime is 51154553045207. The reversal of 51154553045201 is 10254035545115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40163842875025 + 10990710170176 = 6337495^2 + 3315224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51154553045201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51154553045207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25577276522600 + 25577276522601.

It is an arithmetic number, because the mean of its divisors is an integer number (25577276522601).

Almost surely, 2^{51154553045201} is an apocalyptic number.

It is an amenable number.

51154553045201 is a deficient number, since it is larger than the sum of its proper divisors (1).

51154553045201 is an equidigital number, since it uses as much as digits as its factorization.

51154553045201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300000, while the sum is 41.

The spelling of 51154553045201 in words is "fifty-one trillion, one hundred fifty-four billion, five hundred fifty-three million, forty-five thousand, two hundred one".