51443445241 has 2 divisors, whose sum is σ = 51443445242. Its totient is φ = 51443445240.

The previous prime is 51443445233. The next prime is 51443445247. The reversal of 51443445241 is 14254434415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48885210000 + 2558235241 = 221100^2 + 50579^2 .

It is a cyclic number.

It is not a de Polignac number, because 51443445241 - 2³ = 51443445233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51443445241.

It is not a weakly prime, because it can be changed into another prime (51443445247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25721722620 + 25721722621.

It is an arithmetic number, because the mean of its divisors is an integer number (25721722621).

Almost surely, 2^51443445241 is an apocalyptic number.

It is an amenable number.

51443445241 is a deficient number, since it is larger than the sum of its proper divisors (1).

51443445241 is an equidigital number, since it uses as much as digits as its factorization.

51443445241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153600, while the sum is 37.

Adding to 51443445241 its reverse (14254434415), we get a palindrome (65697879656).

The spelling of 51443445241 in words is "fifty-one billion, four hundred forty-three million, four hundred forty-five thousand, two hundred forty-one".