225632291 has 8 divisors (see below), whose sum is σ = 235090944. Its totient is φ = 216309960.

The previous prime is 225632273. The next prime is 225632317. The reversal of 225632291 is 192236522.

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 225632291 - 2²⁶ = 158523427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225632191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30695 + ... + 37328.

It is an arithmetic number, because the mean of its divisors is an integer number (29386368).

Almost surely, 2^225632291 is an apocalyptic number.

225632291 is a deficient number, since it is larger than the sum of its proper divisors (9458653).

225632291 is a wasteful number, since it uses less digits than its factorization.

225632291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68161.

The product of its digits is 12960, while the sum is 32.

The square root of 225632291 is about 15021.0615803278. The cubic root of 225632291 is about 608.7894032318.

The spelling of 225632291 in words is "two hundred twenty-five million, six hundred thirty-two thousand, two hundred ninety-one".