51351531337433 has 2 divisors, whose sum is σ = 51351531337434. Its totient is φ = 51351531337432.

The previous prime is 51351531337391. The next prime is 51351531337459. The reversal of 51351531337433 is 33473313515315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39851544844864 + 11499986492569 = 6312808^2 + 3391163^2 .

It is a cyclic number.

It is not a de Polignac number, because 51351531337433 - 2¹⁶ = 51351531271897 is a prime.

It is not a weakly prime, because it can be changed into another prime (51351531337933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25675765668716 + 25675765668717.

It is an arithmetic number, because the mean of its divisors is an integer number (25675765668717).

Almost surely, 2^{51351531337433} is an apocalyptic number.

It is an amenable number.

51351531337433 is a deficient number, since it is larger than the sum of its proper divisors (1).

51351531337433 is an equidigital number, since it uses as much as digits as its factorization.

51351531337433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2551500, while the sum is 47.

The spelling of 51351531337433 in words is "fifty-one trillion, three hundred fifty-one billion, five hundred thirty-one million, three hundred thirty-seven thousand, four hundred thirty-three".