51030210211 has 4 divisors (see below), whose sum is σ = 51065477872. Its totient is φ = 50994942552.

The previous prime is 51030210199. The next prime is 51030210269. The reversal of 51030210211 is 11201203015.

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 51030210211 - 2¹⁹ = 51029685923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51030250211) 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, 17631660 + ... + 17634553.

It is an arithmetic number, because the mean of its divisors is an integer number (12766369468).

Almost surely, 2^51030210211 is an apocalyptic number.

51030210211 is a deficient number, since it is larger than the sum of its proper divisors (35267661).

51030210211 is a wasteful number, since it uses less digits than its factorization.

51030210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35267660.

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 51030210211 its reverse (11201203015), we get a palindrome (62231413226).

The spelling of 51030210211 in words is "fifty-one billion, thirty million, two hundred ten thousand, two hundred eleven".