225908805 has 16 divisors (see below), whose sum is σ = 361641600. Its totient is φ = 120422208.

The previous prime is 225908773. The next prime is 225908827. The reversal of 225908805 is 508809522.

225908805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225908805 - 2⁵ = 225908773 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49771 + ... + 54119.

It is an arithmetic number, because the mean of its divisors is an integer number (22602600).

Almost surely, 2^225908805 is an apocalyptic number.

It is an amenable number.

225908805 is a deficient number, since it is larger than the sum of its proper divisors (135732795).

225908805 is a wasteful number, since it uses less digits than its factorization.

225908805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 225908805 is about 15030.2629717514. The cubic root of 225908805 is about 609.0379936445.

The spelling of 225908805 in words is "two hundred twenty-five million, nine hundred eight thousand, eight hundred five".