225025881 has 4 divisors (see below), whose sum is σ = 300034512. Its totient is φ = 150017252.

The previous prime is 225025861. The next prime is 225025883. The reversal of 225025881 is 188520522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225025881 - 2⁹ = 225025369 is a prime.

It is a super-3 number, since 3×225025881³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (225025883) 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 3 ways as a sum of consecutive naturals, for example, 37504311 + ... + 37504316.

It is an arithmetic number, because the mean of its divisors is an integer number (75008628).

Almost surely, 2^225025881 is an apocalyptic number.

It is an amenable number.

225025881 is a deficient number, since it is larger than the sum of its proper divisors (75008631).

225025881 is an equidigital number, since it uses as much as digits as its factorization.

225025881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75008630.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 225025881 is about 15000.8626751931. The cubic root of 225025881 is about 608.2435191773.

The spelling of 225025881 in words is "two hundred twenty-five million, twenty-five thousand, eight hundred eighty-one".