53583521 has 2 divisors, whose sum is σ = 53583522. Its totient is φ = 53583520.

The previous prime is 53583493. The next prime is 53583539. The reversal of 53583521 is 12538535.

53583521 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., 39438400 + 14145121 = 6280^2 + 3761^2 .

It is a cyclic number.

It is not a de Polignac number, because 53583521 - 2⁶ = 53583457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53583571) 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, 26791760 + 26791761.

It is an arithmetic number, because the mean of its divisors is an integer number (26791761).

Almost surely, 2^53583521 is an apocalyptic number.

It is an amenable number.

53583521 is a deficient number, since it is larger than the sum of its proper divisors (1).

53583521 is an equidigital number, since it uses as much as digits as its factorization.

53583521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

The square root of 53583521 is about 7320.0765706378. The cubic root of 53583521 is about 377.0020826036.

The spelling of 53583521 in words is "fifty-three million, five hundred eighty-three thousand, five hundred twenty-one".