111550225 has 6 divisors (see below), whose sum is σ = 138322310. Its totient is φ = 89240160.

The previous prime is 111550199. The next prime is 111550237. The reversal of 111550225 is 522055111.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1803649 + 109746576 = 1343^2 + 10476^2 .

It is not a de Polignac number, because 111550225 - 2¹⁵ = 111517457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111550196 and 111550205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2230980 + ... + 2231029.

Almost surely, 2^111550225 is an apocalyptic number.

It is an amenable number.

111550225 is a deficient number, since it is larger than the sum of its proper divisors (26772085).

111550225 is an equidigital number, since it uses as much as digits as its factorization.

111550225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462019 (or 4462014 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 111550225 is about 10561.7339958929. The cubic root of 111550225 is about 481.3823361256.

The spelling of 111550225 in words is "one hundred eleven million, five hundred fifty thousand, two hundred twenty-five".