225581043276 has 72 divisors (see below), whose sum is σ = 583154644800. Its totient is φ = 73506700800.

The previous prime is 225581043271. The next prime is 225581043283. The reversal of 225581043276 is 672340185522.

225581043276 is a `hidden beast` number, since 2 + 2 + 5 + 581 + 0 + 43 + 27 + 6 = 666.

225581043276 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (225581043271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105421 + ... + 679908.

Almost surely, 2^225581043276 is an apocalyptic number.

It is an amenable number.

225581043276 is an abundant number, since it is smaller than the sum of its proper divisors (357573601524).

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

225581043276 is a wasteful number, since it uses less digits than its factorization.

225581043276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785519 (or 785514 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 225581043276 in words is "two hundred twenty-five billion, five hundred eighty-one million, forty-three thousand, two hundred seventy-six".