51961095227 has 2 divisors, whose sum is σ = 51961095228. Its totient is φ = 51961095226.

The previous prime is 51961095223. The next prime is 51961095271. The reversal of 51961095227 is 72259016915.

51961095227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51961095227 - 2² = 51961095223 is a prime.

It is not a weakly prime, because it can be changed into another prime (51961095223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25980547613 + 25980547614.

It is an arithmetic number, because the mean of its divisors is an integer number (25980547614).

Almost surely, 2^51961095227 is an apocalyptic number.

51961095227 is a deficient number, since it is larger than the sum of its proper divisors (1).

51961095227 is an equidigital number, since it uses as much as digits as its factorization.

51961095227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 47.

The spelling of 51961095227 in words is "fifty-one billion, nine hundred sixty-one million, ninety-five thousand, two hundred twenty-seven".