51636353 has 2 divisors, whose sum is σ = 51636354. Its totient is φ = 51636352.

The previous prime is 51636337. The next prime is 51636379. The reversal of 51636353 is 35363615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50452609 + 1183744 = 7103^2 + 1088^2 .

It is a cyclic number.

It is not a de Polignac number, because 51636353 - 2⁴ = 51636337 is a prime.

It is a super-2 number, since 2×51636353² = 5332625902281218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51636853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25818176 + 25818177.

It is an arithmetic number, because the mean of its divisors is an integer number (25818177).

Almost surely, 2^51636353 is an apocalyptic number.

It is an amenable number.

51636353 is a deficient number, since it is larger than the sum of its proper divisors (1).

51636353 is an equidigital number, since it uses as much as digits as its factorization.

51636353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24300, while the sum is 32.

The square root of 51636353 is about 7185.8439309520. The cubic root of 51636353 is about 372.3790048899.

Adding to 51636353 its reverse (35363615), we get a palindrome (86999968).

The spelling of 51636353 in words is "fifty-one million, six hundred thirty-six thousand, three hundred fifty-three".