225633890 has 16 divisors (see below), whose sum is σ = 412204032. Its totient is φ = 88906224.

The previous prime is 225633869. The next prime is 225633893. The reversal of 225633890 is 98336522.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225633893) 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, 167714 + ... + 169053.

It is an arithmetic number, because the mean of its divisors is an integer number (25762752).

Almost surely, 2^225633890 is an apocalyptic number.

225633890 is a deficient number, since it is larger than the sum of its proper divisors (186570142).

225633890 is a wasteful number, since it uses less digits than its factorization.

225633890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336841.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 225633890 is about 15021.1148054996. The cubic root of 225633890 is about 608.7908413415.

The spelling of 225633890 in words is "two hundred twenty-five million, six hundred thirty-three thousand, eight hundred ninety".