55091409605 has 8 divisors (see below), whose sum is σ = 66111806232. Its totient is φ = 44071717888.

The previous prime is 55091409599. The next prime is 55091409631. The reversal of 55091409605 is 50690419055.

55091409605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 380796196 + 54710613409 = 19514^2 + 233903^2 .

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 55091409605 - 2¹⁴ = 55091393221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14477 + ... + 332253.

It is an arithmetic number, because the mean of its divisors is an integer number (8263975779).

Almost surely, 2^55091409605 is an apocalyptic number.

It is an amenable number.

55091409605 is a deficient number, since it is larger than the sum of its proper divisors (11020396627).

55091409605 is a wasteful number, since it uses less digits than its factorization.

55091409605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352455.

The product of its (nonzero) digits is 243000, while the sum is 44.

The spelling of 55091409605 in words is "fifty-five billion, ninety-one million, four hundred nine thousand, six hundred five".