4121500225 has 6 divisors (see below), whose sum is σ = 5110660310. Its totient is φ = 3297200160.

The previous prime is 4121500223. The next prime is 4121500241. The reversal of 4121500225 is 5220051214.

It can be written as a sum of positive squares in 3 ways, for example, as 842334529 + 3279165696 = 29023^2 + 57264^2 .

It is not a de Polignac number, because 4121500225 - 2¹ = 4121500223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4121500196 and 4121500205.

It is not an unprimeable number, because it can be changed into a prime (4121500223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82429980 + ... + 82430029.

Almost surely, 2^4121500225 is an apocalyptic number.

It is an amenable number.

4121500225 is a deficient number, since it is larger than the sum of its proper divisors (989160085).

4121500225 is a wasteful number, since it uses less digits than its factorization.

4121500225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164860019 (or 164860014 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 4121500225 is about 64198.9114004280. The cubic root of 4121500225 is about 1603.3134751117.

Adding to 4121500225 its reverse (5220051214), we get a palindrome (9341551439).

The spelling of 4121500225 in words is "four billion, one hundred twenty-one million, five hundred thousand, two hundred twenty-five".