225612225648 has 30 divisors (see below), whose sum is σ = 631400881904. Its totient is φ = 75204075168.

The previous prime is 225612225607. The next prime is 225612225689. The reversal of 225612225648 is 846522216522.

225612225648 is a `hidden beast` number, since 2 + 2 + 5 + 61 + 2 + 22 + 564 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (225612225607) and next prime (225612225689).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 783375640 + ... + 783375927.

Almost surely, 2^225612225648 is an apocalyptic number.

It is an amenable number.

225612225648 is an abundant number, since it is smaller than the sum of its proper divisors (405788656256).

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

225612225648 is a wasteful number, since it uses less digits than its factorization.

225612225648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566751581 (or 1566751572 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The spelling of 225612225648 in words is "two hundred twenty-five billion, six hundred twelve million, two hundred twenty-five thousand, six hundred forty-eight".