55050550555505 has 16 divisors (see below), whose sum is σ = 66933091653120. Its totient is φ = 43459423455552.

The previous prime is 55050550555499. The next prime is 55050550555531. The reversal of 55050550555505 is 50555505505055.

It is a cyclic number.

It is not a de Polignac number, because 55050550555505 - 2¹⁰ = 55050550554481 is a prime.

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, 36998774 + ... + 38457903.

It is an arithmetic number, because the mean of its divisors is an integer number (4183318228320).

Almost surely, 2^{55050550555505} is an apocalyptic number.

It is an amenable number.

55050550555505 is a deficient number, since it is larger than the sum of its proper divisors (11882541097615).

55050550555505 is a wasteful number, since it uses less digits than its factorization.

55050550555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75458608.

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

The spelling of 55050550555505 in words is "fifty-five trillion, fifty billion, five hundred fifty million, five hundred fifty-five thousand, five hundred five".