54517522789 has 2 divisors, whose sum is σ = 54517522790. Its totient is φ = 54517522788.

The previous prime is 54517522769. The next prime is 54517522793. The reversal of 54517522789 is 98722571545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40468161889 + 14049360900 = 201167^2 + 118530^2 .

It is a cyclic number.

It is not a de Polignac number, because 54517522789 - 2⁹ = 54517522277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54517522729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27258761394 + 27258761395.

It is an arithmetic number, because the mean of its divisors is an integer number (27258761395).

Almost surely, 2^54517522789 is an apocalyptic number.

It is an amenable number.

54517522789 is a deficient number, since it is larger than the sum of its proper divisors (1).

54517522789 is an equidigital number, since it uses as much as digits as its factorization.

54517522789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056000, while the sum is 55.

The spelling of 54517522789 in words is "fifty-four billion, five hundred seventeen million, five hundred twenty-two thousand, seven hundred eighty-nine".