225443963 has 2 divisors, whose sum is σ = 225443964. Its totient is φ = 225443962.

The previous prime is 225443951. The next prime is 225444013. The reversal of 225443963 is 369344522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225443963 - 2⁶ = 225443899 is a prime.

It is not a weakly prime, because it can be changed into another prime (225443063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112721981 + 112721982.

It is an arithmetic number, because the mean of its divisors is an integer number (112721982).

Almost surely, 2^225443963 is an apocalyptic number.

225443963 is a deficient number, since it is larger than the sum of its proper divisors (1).

225443963 is an equidigital number, since it uses as much as digits as its factorization.

225443963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 38.

The square root of 225443963 is about 15014.7914737435. The cubic root of 225443963 is about 608.6199771214.

The spelling of 225443963 in words is "two hundred twenty-five million, four hundred forty-three thousand, nine hundred sixty-three".