225287571 has 8 divisors (see below), whose sum is σ = 310073344. Its totient is φ = 145346760.

The previous prime is 225287551. The next prime is 225287581. The reversal of 225287571 is 175782522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225287571 - 2¹⁴ = 225271187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225287551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1211131 + ... + 1211316.

It is an arithmetic number, because the mean of its divisors is an integer number (38759168).

Almost surely, 2^225287571 is an apocalyptic number.

225287571 is a deficient number, since it is larger than the sum of its proper divisors (84785773).

225287571 is a wasteful number, since it uses less digits than its factorization.

225287571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422481.

The product of its digits is 78400, while the sum is 39.

The square root of 225287571 is about 15009.5826391009. The cubic root of 225287571 is about 608.4792099696.

The spelling of 225287571 in words is "two hundred twenty-five million, two hundred eighty-seven thousand, five hundred seventy-one".