54218784559 has 2 divisors, whose sum is σ = 54218784560. Its totient is φ = 54218784558.

The previous prime is 54218784553. The next prime is 54218784577. The reversal of 54218784559 is 95548781245.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54218784559 - 2³ = 54218784551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54218784551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27109392279 + 27109392280.

It is an arithmetic number, because the mean of its divisors is an integer number (27109392280).

Almost surely, 2^54218784559 is an apocalyptic number.

54218784559 is a deficient number, since it is larger than the sum of its proper divisors (1).

54218784559 is an equidigital number, since it uses as much as digits as its factorization.

54218784559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128000, while the sum is 58.

The spelling of 54218784559 in words is "fifty-four billion, two hundred eighteen million, seven hundred eighty-four thousand, five hundred fifty-nine".