51226456289 has 2 divisors, whose sum is σ = 51226456290. Its totient is φ = 51226456288.

The previous prime is 51226456219. The next prime is 51226456397. The reversal of 51226456289 is 98265462215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46379929600 + 4846526689 = 215360^2 + 69617^2 .

It is a cyclic number.

It is not a de Polignac number, because 51226456289 - 2¹⁶ = 51226390753 is a prime.

It is not a weakly prime, because it can be changed into another prime (51226456219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25613228144 + 25613228145.

It is an arithmetic number, because the mean of its divisors is an integer number (25613228145).

Almost surely, 2^51226456289 is an apocalyptic number.

It is an amenable number.

51226456289 is a deficient number, since it is larger than the sum of its proper divisors (1).

51226456289 is an equidigital number, since it uses as much as digits as its factorization.

51226456289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 50.

The spelling of 51226456289 in words is "fifty-one billion, two hundred twenty-six million, four hundred fifty-six thousand, two hundred eighty-nine".