225708688 has 20 divisors (see below), whose sum is σ = 442848640. Its totient is φ = 111425184.

The previous prime is 225708673. The next prime is 225708697. The reversal of 225708688 is 886807522.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88020 + ... + 90547.

It is an arithmetic number, because the mean of its divisors is an integer number (22142432).

Almost surely, 2^225708688 is an apocalyptic number.

It is an amenable number.

225708688 is a deficient number, since it is larger than the sum of its proper divisors (217139952).

225708688 is a wasteful number, since it uses less digits than its factorization.

225708688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178654 (or 178648 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 225708688 is about 15023.6043611378. The cubic root of 225708688 is about 608.8581056260.

The spelling of 225708688 in words is "two hundred twenty-five million, seven hundred eight thousand, six hundred eighty-eight".