225531633 has 8 divisors (see below), whose sum is σ = 301968000. Its totient is φ = 149724848.

The previous prime is 225531617. The next prime is 225531643. The reversal of 225531633 is 336135522.

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 225531633 - 2⁴ = 225531617 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225531633.

It is not an unprimeable number, because it can be changed into a prime (225531643) 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, 156558 + ... + 157991.

It is an arithmetic number, because the mean of its divisors is an integer number (37746000).

Almost surely, 2^225531633 is an apocalyptic number.

It is an amenable number.

225531633 is a deficient number, since it is larger than the sum of its proper divisors (76436367).

225531633 is a wasteful number, since it uses less digits than its factorization.

225531633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314791.

The product of its digits is 16200, while the sum is 30.

The square root of 225531633 is about 15017.7106444358. The cubic root of 225531633 is about 608.6988596926.

The spelling of 225531633 in words is "two hundred twenty-five million, five hundred thirty-one thousand, six hundred thirty-three".