54643616201 has 2 divisors, whose sum is σ = 54643616202. Its totient is φ = 54643616200.

The previous prime is 54643616197. The next prime is 54643616213. The reversal of 54643616201 is 10261634645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48686863801 + 5956752400 = 220651^2 + 77180^2 .

It is a cyclic number.

It is not a de Polignac number, because 54643616201 - 2² = 54643616197 is a prime.

It is not a weakly prime, because it can be changed into another prime (54643616501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27321808100 + 27321808101.

It is an arithmetic number, because the mean of its divisors is an integer number (27321808101).

Almost surely, 2^54643616201 is an apocalyptic number.

It is an amenable number.

54643616201 is a deficient number, since it is larger than the sum of its proper divisors (1).

54643616201 is an equidigital number, since it uses as much as digits as its factorization.

54643616201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 54643616201 in words is "fifty-four billion, six hundred forty-three million, six hundred sixteen thousand, two hundred one".