55550055550505 has 16 divisors (see below), whose sum is σ = 67324440544704. Its totient is φ = 43997185684800.

The previous prime is 55550055550471. The next prime is 55550055550523. The reversal of 55550055550505 is 50505555005555.

It is not a de Polignac number, because 55550055550505 - 2²⁴ = 55550038773289 is a prime.

It is a Duffinian 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, 4225454 + ... + 11355816.

It is an arithmetic number, because the mean of its divisors is an integer number (4207777534044).

Almost surely, 2^{55550055550505} is an apocalyptic number.

It is an amenable number.

55550055550505 is a deficient number, since it is larger than the sum of its proper divisors (11774384994199).

55550055550505 is a wasteful number, since it uses less digits than its factorization.

55550055550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145896.

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

The spelling of 55550055550505 in words is "fifty-five trillion, five hundred fifty billion, fifty-five million, five hundred fifty thousand, five hundred five".