225806288 has 20 divisors (see below), whose sum is σ = 445756068. Its totient is φ = 110772480.

The previous prime is 225806239. The next prime is 225806303. The reversal of 225806288 is 882608522.

It can be written as a sum of positive squares in 2 ways, for example, as 207590464 + 18215824 = 14408^2 + 4268^2 .

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132293 + ... + 133988.

Almost surely, 2^225806288 is an apocalyptic number.

It is an amenable number.

225806288 is a deficient number, since it is larger than the sum of its proper divisors (219949780).

225806288 is a wasteful number, since it uses less digits than its factorization.

225806288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266342 (or 266336 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 225806288 is about 15026.8522319214. The cubic root of 225806288 is about 608.9458529318.

The spelling of 225806288 in words is "two hundred twenty-five million, eight hundred six thousand, two hundred eighty-eight".