51333424342061 has 2 divisors, whose sum is σ = 51333424342062. Its totient is φ = 51333424342060.

The previous prime is 51333424342021. The next prime is 51333424342111. The reversal of 51333424342061 is 16024342433315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41948355330025 + 9385069012036 = 6476755^2 + 3063506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51333424342061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51333424342021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25666712171030 + 25666712171031.

It is an arithmetic number, because the mean of its divisors is an integer number (25666712171031).

Almost surely, 2^{51333424342061} is an apocalyptic number.

It is an amenable number.

51333424342061 is a deficient number, since it is larger than the sum of its proper divisors (1).

51333424342061 is an equidigital number, since it uses as much as digits as its factorization.

51333424342061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 41.

Adding to 51333424342061 its reverse (16024342433315), we get a palindrome (67357766775376).

The spelling of 51333424342061 in words is "fifty-one trillion, three hundred thirty-three billion, four hundred twenty-four million, three hundred forty-two thousand, sixty-one".