15211170055 has 8 divisors (see below), whose sum is σ = 18842223744. Its totient is φ = 11776389600.

The previous prime is 15211170049. The next prime is 15211170097. The reversal of 15211170055 is 55007111251.

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

It is a de Polignac number, because none of the positive numbers 2^k-15211170055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49068136 + ... + 49068445.

It is an arithmetic number, because the mean of its divisors is an integer number (2355277968).

Almost surely, 2^15211170055 is an apocalyptic number.

15211170055 is a deficient number, since it is larger than the sum of its proper divisors (3631053689).

15211170055 is an equidigital number, since it uses as much as digits as its factorization.

15211170055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98136617.

The product of its (nonzero) digits is 1750, while the sum is 28.

The spelling of 15211170055 in words is "fifteen billion, two hundred eleven million, one hundred seventy thousand, fifty-five".