55555005605 has 16 divisors (see below), whose sum is σ = 75072572928. Its totient is φ = 39100296000.

The previous prime is 55555005593. The next prime is 55555005607. The reversal of 55555005605 is 50650055555.

It is not a de Polignac number, because 55555005605 - 2⁴ = 55555005589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555005607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16290086 + ... + 16293495.

It is an arithmetic number, because the mean of its divisors is an integer number (4692035808).

Almost surely, 2^55555005605 is an apocalyptic number.

55555005605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55555005605 is a deficient number, since it is larger than the sum of its proper divisors (19517567323).

55555005605 is a wasteful number, since it uses less digits than its factorization.

55555005605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32583628.

The product of its (nonzero) digits is 468750, while the sum is 41.

The spelling of 55555005605 in words is "fifty-five billion, five hundred fifty-five million, five thousand, six hundred five".