55211005211 has 4 divisors (see below), whose sum is σ = 55214097792. Its totient is φ = 55207912632.

The previous prime is 55211005193. The next prime is 55211005219. The reversal of 55211005211 is 11250011255.

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

It is a cyclic number.

It is not a de Polignac number, because 55211005211 - 2¹⁴ = 55210988827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55211005219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519355 + ... + 1555268.

It is an arithmetic number, because the mean of its divisors is an integer number (13803524448).

Almost surely, 2^55211005211 is an apocalyptic number.

55211005211 is a deficient number, since it is larger than the sum of its proper divisors (3092581).

55211005211 is a wasteful number, since it uses less digits than its factorization.

55211005211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092580.

The product of its (nonzero) digits is 500, while the sum is 23.

Adding to 55211005211 its reverse (11250011255), we get a palindrome (66461016466).

The spelling of 55211005211 in words is "fifty-five billion, two hundred eleven million, five thousand, two hundred eleven".