51336433 has 2 divisors, whose sum is σ = 51336434. Its totient is φ = 51336432.

The previous prime is 51336419. The next prime is 51336443. The reversal of 51336433 is 33463315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43652449 + 7683984 = 6607^2 + 2772^2 .

It is a cyclic number.

It is not a de Polignac number, because 51336433 - 2⁵ = 51336401 is a prime.

It is not a weakly prime, because it can be changed into another prime (51336443) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25668216 + 25668217.

It is an arithmetic number, because the mean of its divisors is an integer number (25668217).

Almost surely, 2^51336433 is an apocalyptic number.

It is an amenable number.

51336433 is a deficient number, since it is larger than the sum of its proper divisors (1).

51336433 is an equidigital number, since it uses as much as digits as its factorization.

51336433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 28.

The square root of 51336433 is about 7164.9447311197. The cubic root of 51336433 is about 371.6566401428.

Adding to 51336433 its reverse (33463315), we get a palindrome (84799748).

The spelling of 51336433 in words is "fifty-one million, three hundred thirty-six thousand, four hundred thirty-three".