54555464209 has 2 divisors, whose sum is σ = 54555464210. Its totient is φ = 54555464208.

The previous prime is 54555464177. The next prime is 54555464213. The reversal of 54555464209 is 90246455545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46773577984 + 7781886225 = 216272^2 + 88215^2 .

It is a cyclic number.

It is not a de Polignac number, because 54555464209 - 2⁵ = 54555464177 is a prime.

It is not a weakly prime, because it can be changed into another prime (54555474209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27277732104 + 27277732105.

It is an arithmetic number, because the mean of its divisors is an integer number (27277732105).

Almost surely, 2^54555464209 is an apocalyptic number.

It is an amenable number.

54555464209 is a deficient number, since it is larger than the sum of its proper divisors (1).

54555464209 is an equidigital number, since it uses as much as digits as its factorization.

54555464209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 54555464209 in words is "fifty-four billion, five hundred fifty-five million, four hundred sixty-four thousand, two hundred nine".