55395211 has 4 divisors (see below), whose sum is σ = 55433952. Its totient is φ = 55356472.

The previous prime is 55395173. The next prime is 55395227. The reversal of 55395211 is 11259355.

55395211 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.

It is a cyclic number.

It is not a de Polignac number, because 55395211 - 2¹³ = 55387019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55395251) 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, 17140 + ... + 20113.

It is an arithmetic number, because the mean of its divisors is an integer number (13858488).

Almost surely, 2^55395211 is an apocalyptic number.

55395211 is a deficient number, since it is larger than the sum of its proper divisors (38741).

55395211 is a wasteful number, since it uses less digits than its factorization.

55395211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38740.

The product of its digits is 6750, while the sum is 31.

The square root of 55395211 is about 7442.7959128274. The cubic root of 55395211 is about 381.2039630517.

The spelling of 55395211 in words is "fifty-five million, three hundred ninety-five thousand, two hundred eleven".