55304217633809 has 4 divisors (see below), whose sum is σ = 58557406906404. Its totient is φ = 52051028361216.

The previous prime is 55304217633737. The next prime is 55304217633811. The reversal of 55304217633809 is 90833671240355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43684961491600 + 11619256142209 = 6609460^2 + 3408703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55304217633809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55304217633859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1626594636272 + ... + 1626594636305.

It is an arithmetic number, because the mean of its divisors is an integer number (14639351726601).

It is a 1-persistent number, because it is pandigital, but 2⋅55304217633809 = 110608435267618 is not.

Almost surely, 2^{55304217633809} is an apocalyptic number.

It is an amenable number.

55304217633809 is a deficient number, since it is larger than the sum of its proper divisors (3253189272595).

55304217633809 is a wasteful number, since it uses less digits than its factorization.

55304217633809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253189272594.

The product of its (nonzero) digits is 16329600, while the sum is 56.

The spelling of 55304217633809 in words is "fifty-five trillion, three hundred four billion, two hundred seventeen million, six hundred thirty-three thousand, eight hundred nine".