51395610433 has 2 divisors, whose sum is σ = 51395610434. Its totient is φ = 51395610432.

The previous prime is 51395610391. The next prime is 51395610439. The reversal of 51395610433 is 33401659315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50459984689 + 935625744 = 224633^2 + 30588^2 .

It is a cyclic number.

It is not a de Polignac number, because 51395610433 - 2²⁵ = 51362056001 is a prime.

It is not a weakly prime, because it can be changed into another prime (51395610439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25697805216 + 25697805217.

It is an arithmetic number, because the mean of its divisors is an integer number (25697805217).

Almost surely, 2^51395610433 is an apocalyptic number.

It is an amenable number.

51395610433 is a deficient number, since it is larger than the sum of its proper divisors (1).

51395610433 is an equidigital number, since it uses as much as digits as its factorization.

51395610433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 51395610433 in words is "fifty-one billion, three hundred ninety-five million, six hundred ten thousand, four hundred thirty-three".