3511225 has 6 divisors (see below), whose sum is σ = 4353950. Its totient is φ = 2808960.

The previous prime is 3511223. The next prime is 3511237. The reversal of 3511225 is 5221153.

It can be written as a sum of positive squares in 3 ways, for example, as 110889 + 3400336 = 333^2 + 1844^2 .

It is not a de Polignac number, because 3511225 - 2¹ = 3511223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3511223) by changing a digit.

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, 70200 + ... + 70249.

Almost surely, 2^3511225 is an apocalyptic number.

It is an amenable number.

3511225 is a deficient number, since it is larger than the sum of its proper divisors (842725).

3511225 is a wasteful number, since it uses less digits than its factorization.

3511225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140459 (or 140454 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 3511225 is about 1873.8262993138. The cubic root of 3511225 is about 151.9915882926.

Adding to 3511225 its reverse (5221153), we get a palindrome (8732378).

The spelling of 3511225 in words is "three million, five hundred eleven thousand, two hundred twenty-five".