55211211334215 has 48 divisors (see below), whose sum is σ = 99380369507328. Its totient is φ = 29405475497376.

The previous prime is 55211211334189. The next prime is 55211211334267. The reversal of 55211211334215 is 51243311211255.

55211211334215 is a `hidden beast` number, since 5 + 5 + 2 + 11 + 211 + 3 + 3 + 421 + 5 = 666.

55211211334215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55211211334215 - 2⁷ = 55211211334087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55211211334215.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30369327 + ... + 32135936.

It is an arithmetic number, because the mean of its divisors is an integer number (2070424364736).

Almost surely, 2^{55211211334215} is an apocalyptic number.

55211211334215 is a deficient number, since it is larger than the sum of its proper divisors (44169158173113).

55211211334215 is an equidigital number, since it uses as much as digits as its factorization.

55211211334215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62506010 (or 62505998 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The spelling of 55211211334215 in words is "fifty-five trillion, two hundred eleven billion, two hundred eleven million, three hundred thirty-four thousand, two hundred fifteen".