51250533331201 has 2 divisors, whose sum is σ = 51250533331202. Its totient is φ = 51250533331200.

The previous prime is 51250533331177. The next prime is 51250533331229. The reversal of 51250533331201 is 10213333505215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28684850718976 + 22565682612225 = 5355824^2 + 4750335^2 .

It is a cyclic number.

It is not a de Polignac number, because 51250533331201 - 2¹³ = 51250533323009 is a prime.

It is not a weakly prime, because it can be changed into another prime (51250531331201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25625266665600 + 25625266665601.

It is an arithmetic number, because the mean of its divisors is an integer number (25625266665601).

Almost surely, 2^{51250533331201} is an apocalyptic number.

It is an amenable number.

51250533331201 is a deficient number, since it is larger than the sum of its proper divisors (1).

51250533331201 is an equidigital number, since it uses as much as digits as its factorization.

51250533331201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 51250533331201 its reverse (10213333505215), we get a palindrome (61463866836416).

The spelling of 51250533331201 in words is "fifty-one trillion, two hundred fifty billion, five hundred thirty-three million, three hundred thirty-one thousand, two hundred one".