565378633 has 2 divisors, whose sum is σ = 565378634. Its totient is φ = 565378632.

The previous prime is 565378631. The next prime is 565378637. The reversal of 565378633 is 336873565.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 519247369 + 46131264 = 22787^2 + 6792^2 .

It is a cyclic number.

It is not a de Polignac number, because 565378633 - 2¹ = 565378631 is a prime.

Together with 565378631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (565378631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282689316 + 282689317.

It is an arithmetic number, because the mean of its divisors is an integer number (282689317).

Almost surely, 2^565378633 is an apocalyptic number.

It is an amenable number.

565378633 is a deficient number, since it is larger than the sum of its proper divisors (1).

565378633 is an equidigital number, since it uses as much as digits as its factorization.

565378633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 46.

The square root of 565378633 is about 23777.6919191077. The cubic root of 565378633 is about 826.8875705132.

The spelling of 565378633 in words is "five hundred sixty-five million, three hundred seventy-eight thousand, six hundred thirty-three".