51885233633 has 2 divisors, whose sum is σ = 51885233634. Its totient is φ = 51885233632.

The previous prime is 51885233599. The next prime is 51885233689. The reversal of 51885233633 is 33633258815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46028698849 + 5856534784 = 214543^2 + 76528^2 .

It is a cyclic number.

It is not a de Polignac number, because 51885233633 - 2³² = 47590266337 is a prime.

It is not a weakly prime, because it can be changed into another prime (51885230633) 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, 25942616816 + 25942616817.

It is an arithmetic number, because the mean of its divisors is an integer number (25942616817).

Almost surely, 2^51885233633 is an apocalyptic number.

It is an amenable number.

51885233633 is a deficient number, since it is larger than the sum of its proper divisors (1).

51885233633 is an equidigital number, since it uses as much as digits as its factorization.

51885233633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 47.

The spelling of 51885233633 in words is "fifty-one billion, eight hundred eighty-five million, two hundred thirty-three thousand, six hundred thirty-three".