225655653512 has 8 divisors (see below), whose sum is σ = 423104350350. Its totient is φ = 112827826752.

The previous prime is 225655653493. The next prime is 225655653521. The reversal of 225655653512 is 215356556522.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 224985154276 + 670499236 = 474326^2 + 25894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14103478337 + ... + 14103478352.

Almost surely, 2^225655653512 is an apocalyptic number.

It is an amenable number.

225655653512 is a deficient number, since it is larger than the sum of its proper divisors (197448696838).

225655653512 is a wasteful number, since it uses less digits than its factorization.

225655653512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28206956695 (or 28206956691 counting only the distinct ones).

The product of its digits is 2700000, while the sum is 47.

The spelling of 225655653512 in words is "two hundred twenty-five billion, six hundred fifty-five million, six hundred fifty-three thousand, five hundred twelve".