51635522243 has 2 divisors, whose sum is σ = 51635522244. Its totient is φ = 51635522242.

The previous prime is 51635522189. The next prime is 51635522249. The reversal of 51635522243 is 34222553615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51635522243 - 2⁶ = 51635522179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51635522197 and 51635522206.

It is not a weakly prime, because it can be changed into another prime (51635522249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25817761121 + 25817761122.

It is an arithmetic number, because the mean of its divisors is an integer number (25817761122).

Almost surely, 2^51635522243 is an apocalyptic number.

51635522243 is a deficient number, since it is larger than the sum of its proper divisors (1).

51635522243 is an equidigital number, since it uses as much as digits as its factorization.

51635522243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 38.

The spelling of 51635522243 in words is "fifty-one billion, six hundred thirty-five million, five hundred twenty-two thousand, two hundred forty-three".