55555050550505 has 16 divisors (see below), whose sum is σ = 75072631362048. Its totient is φ = 39100328832000.

The previous prime is 55555050550367. The next prime is 55555050550553. The reversal of 55555050550505 is 50505505055555.

It is not a de Polignac number, because 55555050550505 - 2³⁶ = 55486331073769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16291801976 + ... + 16291805385.

It is an arithmetic number, because the mean of its divisors is an integer number (4692039460128).

Almost surely, 2^{55555050550505} is an apocalyptic number.

55555050550505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55555050550505 is a deficient number, since it is larger than the sum of its proper divisors (19517580811543).

55555050550505 is a wasteful number, since it uses less digits than its factorization.

55555050550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32583607408.

The product of its (nonzero) digits is 9765625, while the sum is 50.

The spelling of 55555050550505 in words is "fifty-five trillion, five hundred fifty-five billion, fifty million, five hundred fifty thousand, five hundred five".