225806805436 has 12 divisors (see below), whose sum is σ = 395821616400. Its totient is φ = 112714915040.

The previous prime is 225806805401. The next prime is 225806805461. The reversal of 225806805436 is 634508608522.

225806805436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225806805436.

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, 47119225 + ... + 47124016.

It is an arithmetic number, because the mean of its divisors is an integer number (32985134700).

Almost surely, 2^225806805436 is an apocalyptic number.

It is an amenable number.

225806805436 is a deficient number, since it is larger than the sum of its proper divisors (170014810964).

225806805436 is a wasteful number, since it uses less digits than its factorization.

225806805436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94243844 (or 94243842 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 49.

The spelling of 225806805436 in words is "two hundred twenty-five billion, eight hundred six million, eight hundred five thousand, four hundred thirty-six".