225908604 has 36 divisors (see below), whose sum is σ = 576295720. Its totient is φ = 74610720.

The previous prime is 225908603. The next prime is 225908629. The reversal of 225908604 is 406809522.

It is a happy number.

225908604 is a `hidden beast` number, since 2 + 2 + 590 + 8 + 60 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×225908604² = 102069394722457632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225908603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24862 + ... + 32709.

Almost surely, 2^225908604 is an apocalyptic number.

It is an amenable number.

225908604 is an abundant number, since it is smaller than the sum of its proper divisors (350387116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225908604 is a wasteful number, since it uses less digits than its factorization.

225908604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57690 (or 57685 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 225908604 is about 15030.2562852401. The cubic root of 225908604 is about 609.0378130161.

The spelling of 225908604 in words is "two hundred twenty-five million, nine hundred eight thousand, six hundred four".