54182218609 has 4 divisors (see below), whose sum is σ = 54183798180. Its totient is φ = 54180639040.

The previous prime is 54182218589. The next prime is 54182218613. The reversal of 54182218609 is 90681228145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90681228145 = 5 ⋅18136245629.

It can be written as a sum of positive squares in 2 ways, for example, as 50739815025 + 3442403584 = 225255^2 + 58672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54182218609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54182218669) 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 in 3 ways as a sum of consecutive naturals, for example, 737164 + ... + 807325.

It is an arithmetic number, because the mean of its divisors is an integer number (13545949545).

Almost surely, 2^54182218609 is an apocalyptic number.

It is an amenable number.

54182218609 is a deficient number, since it is larger than the sum of its proper divisors (1579571).

54182218609 is a wasteful number, since it uses less digits than its factorization.

54182218609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579570.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 54182218609 in words is "fifty-four billion, one hundred eighty-two million, two hundred eighteen thousand, six hundred nine".