53636321 has 2 divisors, whose sum is σ = 53636322. Its totient is φ = 53636320.

The previous prime is 53636279. The next prime is 53636329. The reversal of 53636321 is 12363635.

It is a happy number.

53636321 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., 46771921 + 6864400 = 6839^2 + 2620^2 .

It is a cyclic number.

It is not a de Polignac number, because 53636321 - 2²² = 49442017 is a prime.

It is not a weakly prime, because it can be changed into another prime (53636329) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26818160 + 26818161.

It is an arithmetic number, because the mean of its divisors is an integer number (26818161).

Almost surely, 2^53636321 is an apocalyptic number.

It is an amenable number.

53636321 is a deficient number, since it is larger than the sum of its proper divisors (1).

53636321 is an equidigital number, since it uses as much as digits as its factorization.

53636321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 29.

The square root of 53636321 is about 7323.6822022805. The cubic root of 53636321 is about 377.1258717521.

Adding to 53636321 its reverse (12363635), we get a palindrome (65999956).

The spelling of 53636321 in words is "fifty-three million, six hundred thirty-six thousand, three hundred twenty-one".