55613545165 has 4 divisors (see below), whose sum is σ = 66736254204. Its totient is φ = 44490836128.

The previous prime is 55613545111. The next prime is 55613545181. The reversal of 55613545165 is 56154531655.

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 29519019721 + 26094525444 = 171811^2 + 161538^2 .

It is a cyclic number.

It is not a de Polignac number, because 55613545165 - 2³³ = 47023610573 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 3 ways as a sum of consecutive naturals, for example, 5561354512 + ... + 5561354521.

It is an arithmetic number, because the mean of its divisors is an integer number (16684063551).

Almost surely, 2^55613545165 is an apocalyptic number.

It is an amenable number.

55613545165 is a deficient number, since it is larger than the sum of its proper divisors (11122709039).

55613545165 is a wasteful number, since it uses less digits than its factorization.

55613545165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11122709038.

The product of its digits is 1350000, while the sum is 46.

The spelling of 55613545165 in words is "fifty-five billion, six hundred thirteen million, five hundred forty-five thousand, one hundred sixty-five".