225850901 has 2 divisors, whose sum is σ = 225850902. Its totient is φ = 225850900.

The previous prime is 225850843. The next prime is 225850909. The reversal of 225850901 is 109058522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225780676 + 70225 = 15026^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 225850901 - 2¹⁸ = 225588757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225850909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112925450 + 112925451.

It is an arithmetic number, because the mean of its divisors is an integer number (112925451).

Almost surely, 2^225850901 is an apocalyptic number.

It is an amenable number.

225850901 is a deficient number, since it is larger than the sum of its proper divisors (1).

225850901 is an equidigital number, since it uses as much as digits as its factorization.

225850901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 225850901 is about 15028.3366012343. The cubic root of 225850901 is about 608.9859538410.

The spelling of 225850901 in words is "two hundred twenty-five million, eight hundred fifty thousand, nine hundred one".