51421442227 has 2 divisors, whose sum is σ = 51421442228. Its totient is φ = 51421442226.

The previous prime is 51421442203. The next prime is 51421442351. The reversal of 51421442227 is 72224412415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51421442227 - 2⁷ = 51421442099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51421442192 and 51421442201.

It is not a weakly prime, because it can be changed into another prime (51421442627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25710721113 + 25710721114.

It is an arithmetic number, because the mean of its divisors is an integer number (25710721114).

Almost surely, 2^51421442227 is an apocalyptic number.

51421442227 is a deficient number, since it is larger than the sum of its proper divisors (1).

51421442227 is an equidigital number, since it uses as much as digits as its factorization.

51421442227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 34.

The spelling of 51421442227 in words is "fifty-one billion, four hundred twenty-one million, four hundred forty-two thousand, two hundred twenty-seven".