55505550555505 has 8 divisors (see below), whose sum is σ = 66637741715712. Its totient is φ = 44383719745008.

The previous prime is 55505550555491. The next prime is 55505550555547. The reversal of 55505550555505 is 50555505550555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55505550555505 - 2⁵ = 55505550555473 is a prime.

It is a super-2 number, since 2×55505550555505² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2590075639 + ... + 2590097068.

It is an arithmetic number, because the mean of its divisors is an integer number (8329717714464).

Almost surely, 2^{55505550555505} is an apocalyptic number.

It is an amenable number.

55505550555505 is a deficient number, since it is larger than the sum of its proper divisors (11132191160207).

55505550555505 is a wasteful number, since it uses less digits than its factorization.

55505550555505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180174855.

The product of its (nonzero) digits is 48828125, while the sum is 55.

The spelling of 55505550555505 in words is "fifty-five trillion, five hundred five billion, five hundred fifty million, five hundred fifty-five thousand, five hundred five".