225166305 has 48 divisors (see below), whose sum is σ = 445875840. Its totient is φ = 95007744.

The previous prime is 225166303. The next prime is 225166339. The reversal of 225166305 is 503661522.

It is not a de Polignac number, because 225166305 - 2¹ = 225166303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225166303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11401 + ... + 24089.

It is an arithmetic number, because the mean of its divisors is an integer number (9289080).

Almost surely, 2^225166305 is an apocalyptic number.

It is an amenable number.

225166305 is a deficient number, since it is larger than the sum of its proper divisors (220709535).

225166305 is a wasteful number, since it uses less digits than its factorization.

225166305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12730 (or 12717 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 225166305 is about 15005.5424760320. The cubic root of 225166305 is about 608.3700145935.

The spelling of 225166305 in words is "two hundred twenty-five million, one hundred sixty-six thousand, three hundred five".