225671111 has 4 divisors (see below), whose sum is σ = 230472672. Its totient is φ = 220869552.

The previous prime is 225671071. The next prime is 225671119. The reversal of 225671111 is 111176522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111176522 = 2 ⋅55588261.

It is a cyclic number.

It is not a de Polignac number, because 225671111 - 2²² = 221476807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225671119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400710 + ... + 2400803.

It is an arithmetic number, because the mean of its divisors is an integer number (57618168).

Almost surely, 2^225671111 is an apocalyptic number.

225671111 is a deficient number, since it is larger than the sum of its proper divisors (4801561).

225671111 is an equidigital number, since it uses as much as digits as its factorization.

225671111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801560.

The product of its digits is 840, while the sum is 26.

The square root of 225671111 is about 15022.3537103877. The cubic root of 225671111 is about 608.8243152699.

The spelling of 225671111 in words is "two hundred twenty-five million, six hundred seventy-one thousand, one hundred eleven".