51328552211 has 4 divisors (see below), whose sum is σ = 51978280800. Its totient is φ = 50678823624.

The previous prime is 51328552169. The next prime is 51328552213. The reversal of 51328552211 is 11225582315.

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 51328552211 - 2¹⁰ = 51328551187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51328552213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324864176 + ... + 324864333.

It is an arithmetic number, because the mean of its divisors is an integer number (12994570200).

Almost surely, 2^51328552211 is an apocalyptic number.

51328552211 is a deficient number, since it is larger than the sum of its proper divisors (649728589).

51328552211 is an equidigital number, since it uses as much as digits as its factorization.

51328552211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649728588.

The product of its digits is 24000, while the sum is 35.

The spelling of 51328552211 in words is "fifty-one billion, three hundred twenty-eight million, five hundred fifty-two thousand, two hundred eleven".