55550055505 has 16 divisors (see below), whose sum is σ = 76191220224. Its totient is φ = 38087323200.

The previous prime is 55550055497. The next prime is 55550055511. The reversal of 55550055505 is 50555005555.

It is not a de Polignac number, because 55550055505 - 2³ = 55550055497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259555 + ... + 422455.

It is an arithmetic number, because the mean of its divisors is an integer number (4761951264).

Almost surely, 2^55550055505 is an apocalyptic number.

It is an amenable number.

55550055505 is a deficient number, since it is larger than the sum of its proper divisors (20641164719).

55550055505 is a wasteful number, since it uses less digits than its factorization.

55550055505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172656.

The product of its (nonzero) digits is 390625, while the sum is 40.

It can be divided in two parts, 5555005550 and 5, that added together give a palindrome (5555005555).

The spelling of 55550055505 in words is "fifty-five billion, five hundred fifty million, fifty-five thousand, five hundred five".