51245354429 has 2 divisors, whose sum is σ = 51245354430. Its totient is φ = 51245354428.

The previous prime is 51245354327. The next prime is 51245354437. The reversal of 51245354429 is 92445354215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29311152025 + 21934202404 = 171205^2 + 148102^2 .

It is a cyclic number.

It is not a de Polignac number, because 51245354429 - 2²⁸ = 50976918973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51245354429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51245354029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25622677214 + 25622677215.

It is an arithmetic number, because the mean of its divisors is an integer number (25622677215).

Almost surely, 2^51245354429 is an apocalyptic number.

It is an amenable number.

51245354429 is a deficient number, since it is larger than the sum of its proper divisors (1).

51245354429 is an equidigital number, since it uses as much as digits as its factorization.

51245354429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 44.

The spelling of 51245354429 in words is "fifty-one billion, two hundred forty-five million, three hundred fifty-four thousand, four hundred twenty-nine".