55211113 has 4 divisors (see below), whose sum is σ = 55361920. Its totient is φ = 55060308.

The previous prime is 55211111. The next prime is 55211153. The reversal of 55211113 is 31111255.

55211113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55211113 - 2¹ = 55211111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55211111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 74853 + ... + 75586.

It is an arithmetic number, because the mean of its divisors is an integer number (13840480).

Almost surely, 2^55211113 is an apocalyptic number.

It is an amenable number.

55211113 is a deficient number, since it is larger than the sum of its proper divisors (150807).

55211113 is a wasteful number, since it uses less digits than its factorization.

55211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150806.

The product of its digits is 150, while the sum is 19.

The square root of 55211113 is about 7430.4180905249. The cubic root of 55211113 is about 380.7812022335.

Adding to 55211113 its reverse (31111255), we get a palindrome (86322368).

The spelling of 55211113 in words is "fifty-five million, two hundred eleven thousand, one hundred thirteen".