51336401 has 2 divisors, whose sum is σ = 51336402. Its totient is φ = 51336400.

The previous prime is 51336371. The next prime is 51336419. The reversal of 51336401 is 10463315.

It is a happy number.

51336401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34105600 + 17230801 = 5840^2 + 4151^2 .

It is a cyclic number.

It is not a de Polignac number, because 51336401 - 2¹⁰ = 51335377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51336451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25668200 + 25668201.

It is an arithmetic number, because the mean of its divisors is an integer number (25668201).

Almost surely, 2^51336401 is an apocalyptic number.

It is an amenable number.

51336401 is a deficient number, since it is larger than the sum of its proper divisors (1).

51336401 is an equidigital number, since it uses as much as digits as its factorization.

51336401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 51336401 is about 7164.9424980247. The cubic root of 51336401 is about 371.6565629201.

Adding to 51336401 its reverse (10463315), we get a palindrome (61799716).

It can be divided in two parts, 51336 and 401, that multiplied together give a triangular number (20585736 = T₆₄₁₆).

The spelling of 51336401 in words is "fifty-one million, three hundred thirty-six thousand, four hundred one".