225763409 has 2 divisors, whose sum is σ = 225763410. Its totient is φ = 225763408.

The previous prime is 225763399. The next prime is 225763429. The reversal of 225763409 is 904367522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116100625 + 109662784 = 10775^2 + 10472^2 .

It is a cyclic number.

It is not a de Polignac number, because 225763409 - 2⁴ = 225763393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225763429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112881704 + 112881705.

It is an arithmetic number, because the mean of its divisors is an integer number (112881705).

Almost surely, 2^225763409 is an apocalyptic number.

It is an amenable number.

225763409 is a deficient number, since it is larger than the sum of its proper divisors (1).

225763409 is an equidigital number, since it uses as much as digits as its factorization.

225763409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 225763409 is about 15025.4254182702. The cubic root of 225763409 is about 608.9073056702.

The spelling of 225763409 in words is "two hundred twenty-five million, seven hundred sixty-three thousand, four hundred nine".