5643529 has 2 divisors, whose sum is σ = 5643530. Its totient is φ = 5643528.

The previous prime is 5643509. The next prime is 5643553. The reversal of 5643529 is 9253465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4721929 + 921600 = 2173^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 5643529 - 2¹³ = 5635337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5643494 and 5643503.

It is not a weakly prime, because it can be changed into another prime (5643509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821764 + 2821765.

It is an arithmetic number, because the mean of its divisors is an integer number (2821765).

Almost surely, 2^5643529 is an apocalyptic number.

It is an amenable number.

5643529 is a deficient number, since it is larger than the sum of its proper divisors (1).

5643529 is an equidigital number, since it uses as much as digits as its factorization.

5643529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 34.

The square root of 5643529 is about 2375.6112897526. The cubic root of 5643529 is about 178.0397272772.

The spelling of 5643529 in words is "five million, six hundred forty-three thousand, five hundred twenty-nine".