225085881 has 8 divisors (see below), whose sum is σ = 303208864. Its totient is φ = 148510080.

The previous prime is 225085879. The next prime is 225085909. The reversal of 225085881 is 188580522.

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

It is not a de Polignac number, because 225085881 - 2¹ = 225085879 is a prime.

It is a super-2 number, since 2×225085881² = 101327307651092322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225085841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386455 + ... + 387036.

It is an arithmetic number, because the mean of its divisors is an integer number (37901108).

Almost surely, 2^225085881 is an apocalyptic number.

It is an amenable number.

225085881 is a deficient number, since it is larger than the sum of its proper divisors (78122983).

225085881 is an equidigital number, since it uses as much as digits as its factorization.

225085881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773591.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 225085881 is about 15002.8624268837. The cubic root of 225085881 is about 608.2975742455.

The spelling of 225085881 in words is "two hundred twenty-five million, eighty-five thousand, eight hundred eighty-one".