53421353 has 2 divisors, whose sum is σ = 53421354. Its totient is φ = 53421352.

The previous prime is 53421343. The next prime is 53421391. The reversal of 53421353 is 35312435.

53421353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52823824 + 597529 = 7268^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 53421353 - 2⁶ = 53421289 is a prime.

It is not a weakly prime, because it can be changed into another prime (53421343) 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, 26710676 + 26710677.

It is an arithmetic number, because the mean of its divisors is an integer number (26710677).

Almost surely, 2^53421353 is an apocalyptic number.

It is an amenable number.

53421353 is a deficient number, since it is larger than the sum of its proper divisors (1).

53421353 is an equidigital number, since it uses as much as digits as its factorization.

53421353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 26.

The square root of 53421353 is about 7308.9912436669. The cubic root of 53421353 is about 376.6213719344.

Adding to 53421353 its reverse (35312435), we get a palindrome (88733788).

The spelling of 53421353 in words is "fifty-three million, four hundred twenty-one thousand, three hundred fifty-three".