225512571 has 16 divisors (see below), whose sum is σ = 303200000. Its totient is φ = 149089248.

The previous prime is 225512557. The next prime is 225512641. The reversal of 225512571 is 175215522.

It is not a de Polignac number, because 225512571 - 2¹⁰ = 225511547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225512471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297525 + ... + 298281.

It is an arithmetic number, because the mean of its divisors is an integer number (18950000).

Almost surely, 2^225512571 is an apocalyptic number.

225512571 is a deficient number, since it is larger than the sum of its proper divisors (77687429).

225512571 is a wasteful number, since it uses less digits than its factorization.

225512571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458.

The product of its digits is 7000, while the sum is 30.

The square root of 225512571 is about 15017.0759803632. The cubic root of 225512571 is about 608.6817100738.

The spelling of 225512571 in words is "two hundred twenty-five million, five hundred twelve thousand, five hundred seventy-one".