53685529 has 2 divisors, whose sum is σ = 53685530. Its totient is φ = 53685528.

The previous prime is 53685491. The next prime is 53685547. The reversal of 53685529 is 92558635.

53685529 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., 49491225 + 4194304 = 7035^2 + 2048^2 .

It is a cyclic number.

It is not a de Polignac number, because 53685529 - 2¹⁵ = 53652761 is a prime.

It is not a weakly prime, because it can be changed into another prime (53685589) 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, 26842764 + 26842765.

It is an arithmetic number, because the mean of its divisors is an integer number (26842765).

Almost surely, 2^53685529 is an apocalyptic number.

It is an amenable number.

53685529 is a deficient number, since it is larger than the sum of its proper divisors (1).

53685529 is an equidigital number, since it uses as much as digits as its factorization.

53685529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 43.

The square root of 53685529 is about 7327.0409443376. The cubic root of 53685529 is about 377.2411663715.

The spelling of 53685529 in words is "fifty-three million, six hundred eighty-five thousand, five hundred twenty-nine".