51233406344513 has 2 divisors, whose sum is σ = 51233406344514. Its totient is φ = 51233406344512.

The previous prime is 51233406344479. The next prime is 51233406344521. The reversal of 51233406344513 is 31544360433215.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50772707497009 + 460698847504 = 7125497^2 + 678748^2 .

It is a cyclic number.

It is not a de Polignac number, because 51233406344513 - 2⁸ = 51233406344257 is a prime.

It is not a weakly prime, because it can be changed into another prime (51233406364513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25616703172256 + 25616703172257.

It is an arithmetic number, because the mean of its divisors is an integer number (25616703172257).

Almost surely, 2^{51233406344513} is an apocalyptic number.

It is an amenable number.

51233406344513 is a deficient number, since it is larger than the sum of its proper divisors (1).

51233406344513 is an equidigital number, since it uses as much as digits as its factorization.

51233406344513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 44.

Adding to 51233406344513 its reverse (31544360433215), we get a palindrome (82777766777728).

The spelling of 51233406344513 in words is "fifty-one trillion, two hundred thirty-three billion, four hundred six million, three hundred forty-four thousand, five hundred thirteen".