53643529 has 2 divisors, whose sum is σ = 53643530. Its totient is φ = 53643528.

The previous prime is 53643523. The next prime is 53643559. The reversal of 53643529 is 92534635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47293129 + 6350400 = 6877^2 + 2520^2 .

It is a cyclic number.

It is not a de Polignac number, because 53643529 - 2¹¹ = 53641481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53643523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26821764 + 26821765.

It is an arithmetic number, because the mean of its divisors is an integer number (26821765).

Almost surely, 2^53643529 is an apocalyptic number.

It is an amenable number.

53643529 is a deficient number, since it is larger than the sum of its proper divisors (1).

53643529 is an equidigital number, since it uses as much as digits as its factorization.

53643529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 37.

The square root of 53643529 is about 7324.1742879317. The cubic root of 53643529 is about 377.1427645434.

The spelling of 53643529 in words is "fifty-three million, six hundred forty-three thousand, five hundred twenty-nine".