225909701 has 2 divisors, whose sum is σ = 225909702. Its totient is φ = 225909700.

The previous prime is 225909667. The next prime is 225909709. The reversal of 225909701 is 107909522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174213601 + 51696100 = 13199^2 + 7190^2 .

It is a cyclic number.

It is not a de Polignac number, because 225909701 - 2⁶ = 225909637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225909709) 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, 112954850 + 112954851.

It is an arithmetic number, because the mean of its divisors is an integer number (112954851).

Almost surely, 2^225909701 is an apocalyptic number.

It is an amenable number.

225909701 is a deficient number, since it is larger than the sum of its proper divisors (1).

225909701 is an equidigital number, since it uses as much as digits as its factorization.

225909701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 225909701 is about 15030.2927782529. The cubic root of 225909701 is about 609.0387988328.

The spelling of 225909701 in words is "two hundred twenty-five million, nine hundred nine thousand, seven hundred one".