5665243 has 2 divisors, whose sum is σ = 5665244. Its totient is φ = 5665242.

The previous prime is 5665217. The next prime is 5665259. The reversal of 5665243 is 3425665.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5665243 - 2⁹ = 5664731 is a prime.

It is not a weakly prime, because it can be changed into another prime (5665213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832621 + 2832622.

It is an arithmetic number, because the mean of its divisors is an integer number (2832622).

Almost surely, 2^5665243 is an apocalyptic number.

5665243 is a deficient number, since it is larger than the sum of its proper divisors (1).

5665243 is an equidigital number, since it uses as much as digits as its factorization.

5665243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 5665243 is about 2380.1770942516. The cubic root of 5665243 is about 178.2677764879.

The spelling of 5665243 in words is "five million, six hundred sixty-five thousand, two hundred forty-three".