54563636609 has 2 divisors, whose sum is σ = 54563636610. Its totient is φ = 54563636608.

The previous prime is 54563636563. The next prime is 54563636639. The reversal of 54563636609 is 90663636545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33808912384 + 20754724225 = 183872^2 + 144065^2 .

It is a cyclic number.

It is not a de Polignac number, because 54563636609 - 2⁸ = 54563636353 is a prime.

It is not a weakly prime, because it can be changed into another prime (54563636639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27281818304 + 27281818305.

It is an arithmetic number, because the mean of its divisors is an integer number (27281818305).

Almost surely, 2^54563636609 is an apocalyptic number.

It is an amenable number.

54563636609 is a deficient number, since it is larger than the sum of its proper divisors (1).

54563636609 is an equidigital number, since it uses as much as digits as its factorization.

54563636609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 53.

The spelling of 54563636609 in words is "fifty-four billion, five hundred sixty-three million, six hundred thirty-six thousand, six hundred nine".