225817763 has 2 divisors, whose sum is σ = 225817764. Its totient is φ = 225817762.

The previous prime is 225817759. The next prime is 225817777. The reversal of 225817763 is 367718522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225817763 - 2² = 225817759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225817763.

It is not a weakly prime, because it can be changed into another prime (225817063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112908881 + 112908882.

It is an arithmetic number, because the mean of its divisors is an integer number (112908882).

Almost surely, 2^225817763 is an apocalyptic number.

225817763 is a deficient number, since it is larger than the sum of its proper divisors (1).

225817763 is an equidigital number, since it uses as much as digits as its factorization.

225817763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 41.

The square root of 225817763 is about 15027.2340435624. The cubic root of 225817763 is about 608.9561678723.

The spelling of 225817763 in words is "two hundred twenty-five million, eight hundred seventeen thousand, seven hundred sixty-three".