225109501 has 2 divisors, whose sum is σ = 225109502. Its totient is φ = 225109500.

The previous prime is 225109477. The next prime is 225109531. The reversal of 225109501 is 105901522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118483225 + 106626276 = 10885^2 + 10326^2 .

It is a cyclic number.

It is not a de Polignac number, because 225109501 - 2⁷ = 225109373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225109531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112554750 + 112554751.

It is an arithmetic number, because the mean of its divisors is an integer number (112554751).

Almost surely, 2^225109501 is an apocalyptic number.

It is an amenable number.

225109501 is a deficient number, since it is larger than the sum of its proper divisors (1).

225109501 is an equidigital number, since it uses as much as digits as its factorization.

225109501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 225109501 is about 15003.6495893499. The cubic root of 225109501 is about 608.3188512889.

The spelling of 225109501 in words is "two hundred twenty-five million, one hundred nine thousand, five hundred one".