51004736633 has 2 divisors, whose sum is σ = 51004736634. Its totient is φ = 51004736632.

The previous prime is 51004736623. The next prime is 51004736639. The reversal of 51004736633 is 33663740015.

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., 50736661504 + 268075129 = 225248^2 + 16373^2 .

It is a cyclic number.

It is not a de Polignac number, because 51004736633 - 2⁶ = 51004736569 is a prime.

It is not a weakly prime, because it can be changed into another prime (51004736639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25502368316 + 25502368317.

It is an arithmetic number, because the mean of its divisors is an integer number (25502368317).

Almost surely, 2^51004736633 is an apocalyptic number.

It is an amenable number.

51004736633 is a deficient number, since it is larger than the sum of its proper divisors (1).

51004736633 is an equidigital number, since it uses as much as digits as its factorization.

51004736633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 51004736633 in words is "fifty-one billion, four million, seven hundred thirty-six thousand, six hundred thirty-three".