9551005055555 has 4 divisors (see below), whose sum is σ = 11461206066672. Its totient is φ = 7640804044440.

The previous prime is 9551005055503. The next prime is 9551005055573. The reversal of 9551005055555 is 5555505001559.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9551005055555 - 2¹² = 9551005051459 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 955100505551 + ... + 955100505560.

It is an arithmetic number, because the mean of its divisors is an integer number (2865301516668).

Almost surely, 2^{9551005055555} is an apocalyptic number.

9551005055555 is a deficient number, since it is larger than the sum of its proper divisors (1910201011117).

9551005055555 is a wasteful number, since it uses less digits than its factorization.

9551005055555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910201011116.

The product of its (nonzero) digits is 3515625, while the sum is 50.

The spelling of 9551005055555 in words is "nine trillion, five hundred fifty-one billion, five million, fifty-five thousand, five hundred fifty-five".