51351334241 has 2 divisors, whose sum is σ = 51351334242. Its totient is φ = 51351334240.

The previous prime is 51351334129. The next prime is 51351334273. The reversal of 51351334241 is 14243315315.

It is an a-pointer prime, because the next prime (51351334273) can be obtained adding 51351334241 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48900688225 + 2450646016 = 221135^2 + 49504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51351334241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51351334198 and 51351334207.

It is not a weakly prime, because it can be changed into another prime (51357334241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25675667120 + 25675667121.

It is an arithmetic number, because the mean of its divisors is an integer number (25675667121).

Almost surely, 2^51351334241 is an apocalyptic number.

It is an amenable number.

51351334241 is a deficient number, since it is larger than the sum of its proper divisors (1).

51351334241 is an equidigital number, since it uses as much as digits as its factorization.

51351334241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 32.

Adding to 51351334241 its reverse (14243315315), we get a palindrome (65594649556).

The spelling of 51351334241 in words is "fifty-one billion, three hundred fifty-one million, three hundred thirty-four thousand, two hundred forty-one".