565726243 has 2 divisors, whose sum is σ = 565726244. Its totient is φ = 565726242.

The previous prime is 565726211. The next prime is 565726253. The reversal of 565726243 is 342627565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 565726243 - 2⁵ = 565726211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 565726196 and 565726205.

It is not a weakly prime, because it can be changed into another prime (565726253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282863121 + 282863122.

It is an arithmetic number, because the mean of its divisors is an integer number (282863122).

Almost surely, 2^565726243 is an apocalyptic number.

565726243 is a deficient number, since it is larger than the sum of its proper divisors (1).

565726243 is an equidigital number, since it uses as much as digits as its factorization.

565726243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 40.

The square root of 565726243 is about 23785.0003783897. Note that the first 3 decimals coincide. The cubic root of 565726243 is about 827.0570000390.

The spelling of 565726243 in words is "five hundred sixty-five million, seven hundred twenty-six thousand, two hundred forty-three".