225541111 has 2 divisors, whose sum is σ = 225541112. Its totient is φ = 225541110.

The previous prime is 225541103. The next prime is 225541133. The reversal of 225541111 is 111145522.

It is an a-pointer prime, because the next prime (225541133) can be obtained adding 225541111 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225541111 - 2³ = 225541103 is a prime.

It is a super-2 number, since 2×225541111² = 101737585502228642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225541711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112770555 + 112770556.

It is an arithmetic number, because the mean of its divisors is an integer number (112770556).

Almost surely, 2^225541111 is an apocalyptic number.

225541111 is a deficient number, since it is larger than the sum of its proper divisors (1).

225541111 is an equidigital number, since it uses as much as digits as its factorization.

225541111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 22.

The square root of 225541111 is about 15018.0262018682. The cubic root of 225541111 is about 608.7073864595.

Adding to 225541111 its reverse (111145522), we get a palindrome (336686633).

The spelling of 225541111 in words is "two hundred twenty-five million, five hundred forty-one thousand, one hundred eleven".