225330091 has 8 divisors (see below), whose sum is σ = 260070624. Its totient is φ = 191227200.

The previous prime is 225330071. The next prime is 225330109. The reversal of 225330091 is 190033522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225330091 - 2⁹ = 225329579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225330031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158650 + ... + 160063.

It is an arithmetic number, because the mean of its divisors is an integer number (32508828).

Almost surely, 2^225330091 is an apocalyptic number.

225330091 is a deficient number, since it is larger than the sum of its proper divisors (34740533).

225330091 is a wasteful number, since it uses less digits than its factorization.

225330091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318821.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 225330091 is about 15010.9990007328. Note that the first 3 decimals coincide. The cubic root of 225330091 is about 608.5174883181.

The spelling of 225330091 in words is "two hundred twenty-five million, three hundred thirty thousand, ninety-one".