225736403 has 2 divisors, whose sum is σ = 225736404. Its totient is φ = 225736402.

The previous prime is 225736361. The next prime is 225736429. The reversal of 225736403 is 304637522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225736403 - 2¹⁸ = 225474259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225736403.

It is not a weakly prime, because it can be changed into another prime (225736453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112868201 + 112868202.

It is an arithmetic number, because the mean of its divisors is an integer number (112868202).

Almost surely, 2^225736403 is an apocalyptic number.

225736403 is a deficient number, since it is larger than the sum of its proper divisors (1).

225736403 is an equidigital number, since it uses as much as digits as its factorization.

225736403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 32.

The square root of 225736403 is about 15024.5267146756. The cubic root of 225736403 is about 608.8830253753.

The spelling of 225736403 in words is "two hundred twenty-five million, seven hundred thirty-six thousand, four hundred three".