55055600605 has 4 divisors (see below), whose sum is σ = 66066720732. Its totient is φ = 44044480480.

The previous prime is 55055600599. The next prime is 55055600617. The reversal of 55055600605 is 50600655055.

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 17019289764 + 38036310841 = 130458^2 + 195029^2 .

It is not a de Polignac number, because 55055600605 - 2¹⁷ = 55055469533 is a prime.

It is a super-2 number, since 2×55055600605² (a number of 22 digits) contains 22 as substring.

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, 5505560056 + ... + 5505560065.

It is an arithmetic number, because the mean of its divisors is an integer number (16516680183).

Almost surely, 2^55055600605 is an apocalyptic number.

It is an amenable number.

55055600605 is a deficient number, since it is larger than the sum of its proper divisors (11011120127).

55055600605 is a wasteful number, since it uses less digits than its factorization.

55055600605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11011120126.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 55055600605 in words is "fifty-five billion, fifty-five million, six hundred thousand, six hundred five".