51699333601 has 2 divisors, whose sum is σ = 51699333602. Its totient is φ = 51699333600.

The previous prime is 51699333593. The next prime is 51699333611. The reversal of 51699333601 is 10633399615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50120463376 + 1578870225 = 223876^2 + 39735^2 .

It is a cyclic number.

It is not a de Polignac number, because 51699333601 - 2³ = 51699333593 is a prime.

It is not a weakly prime, because it can be changed into another prime (51699333611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25849666800 + 25849666801.

It is an arithmetic number, because the mean of its divisors is an integer number (25849666801).

Almost surely, 2^51699333601 is an apocalyptic number.

It is an amenable number.

51699333601 is a deficient number, since it is larger than the sum of its proper divisors (1).

51699333601 is an equidigital number, since it uses as much as digits as its factorization.

51699333601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 393660, while the sum is 46.

The spelling of 51699333601 in words is "fifty-one billion, six hundred ninety-nine million, three hundred thirty-three thousand, six hundred one".