55305585328577 has 8 divisors (see below), whose sum is σ = 56800534074600. Its totient is φ = 53810647277184.

The previous prime is 55305585328529. The next prime is 55305585328579. The reversal of 55305585328577 is 77582358550355.

It can be written as a sum of positive squares in 4 ways, for example, as 109021473856 + 55196563854721 = 330184^2 + 7429439^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55305585328577 - 2²⁶ = 55305518219713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55305585328579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8422949 + ... + 13474317.

It is an arithmetic number, because the mean of its divisors is an integer number (7100066759325).

Almost surely, 2^{55305585328577} is an apocalyptic number.

It is an amenable number.

55305585328577 is a deficient number, since it is larger than the sum of its proper divisors (1494948746023).

55305585328577 is a wasteful number, since it uses less digits than its factorization.

55305585328577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347315.

The product of its (nonzero) digits is 882000000, while the sum is 68.

The spelling of 55305585328577 in words is "fifty-five trillion, three hundred five billion, five hundred eighty-five million, three hundred twenty-eight thousand, five hundred seventy-seven".