51355983227 has 2 divisors, whose sum is σ = 51355983228. Its totient is φ = 51355983226.

The previous prime is 51355983193. The next prime is 51355983229. The reversal of 51355983227 is 72238955315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51355983227 - 2¹² = 51355979131 is a prime.

Together with 51355983229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51355983229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25677991613 + 25677991614.

It is an arithmetic number, because the mean of its divisors is an integer number (25677991614).

Almost surely, 2^51355983227 is an apocalyptic number.

51355983227 is a deficient number, since it is larger than the sum of its proper divisors (1).

51355983227 is an equidigital number, since it uses as much as digits as its factorization.

51355983227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268000, while the sum is 50.

The spelling of 51355983227 in words is "fifty-one billion, three hundred fifty-five million, nine hundred eighty-three thousand, two hundred twenty-seven".