51296567549 has 2 divisors, whose sum is σ = 51296567550. Its totient is φ = 51296567548.

The previous prime is 51296567459. The next prime is 51296567561. The reversal of 51296567549 is 94576569215.

It is a happy number.

Together with previous prime (51296567459) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48716435524 + 2580132025 = 220718^2 + 50795^2 .

It is a cyclic number.

It is not a de Polignac number, because 51296567549 - 2⁸ = 51296567293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51296567579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25648283774 + 25648283775.

It is an arithmetic number, because the mean of its divisors is an integer number (25648283775).

Almost surely, 2^51296567549 is an apocalyptic number.

It is an amenable number.

51296567549 is a deficient number, since it is larger than the sum of its proper divisors (1).

51296567549 is an equidigital number, since it uses as much as digits as its factorization.

51296567549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412000, while the sum is 59.

The spelling of 51296567549 in words is "fifty-one billion, two hundred ninety-six million, five hundred sixty-seven thousand, five hundred forty-nine".