55836211 has 4 divisors (see below), whose sum is σ = 59120712. Its totient is φ = 52551712.

The previous prime is 55836199. The next prime is 55836217. The reversal of 55836211 is 11263855.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55836211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55836217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642225 + ... + 1642258.

It is an arithmetic number, because the mean of its divisors is an integer number (14780178).

Almost surely, 2^55836211 is an apocalyptic number.

55836211 is a deficient number, since it is larger than the sum of its proper divisors (3284501).

55836211 is a wasteful number, since it uses less digits than its factorization.

55836211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284500.

The product of its digits is 7200, while the sum is 31.

The square root of 55836211 is about 7472.3631469569. The cubic root of 55836211 is about 382.2128757849.

The spelling of 55836211 in words is "fifty-five million, eight hundred thirty-six thousand, two hundred eleven".