43243225 has 12 divisors (see below), whose sum is σ = 53769004. Its totient is φ = 34499520.

The previous prime is 43243219. The next prime is 43243261. The reversal of 43243225 is 52234234.

It can be written as a sum of positive squares in 6 ways, for example, as 4343056 + 38900169 = 2084^2 + 6237^2 .

It is not a de Polignac number, because 43243225 - 2³ = 43243217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43243225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7747 + ... + 12103.

Almost surely, 2^43243225 is an apocalyptic number.

It is an amenable number.

43243225 is a deficient number, since it is larger than the sum of its proper divisors (10525779).

43243225 is a wasteful number, since it uses less digits than its factorization.

43243225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764 (or 4759 counting only the distinct ones).

The product of its digits is 5760, while the sum is 25.

The square root of 43243225 is about 6575.9581050977. The cubic root of 43243225 is about 350.9991179703. Note that the first 3 decimals are identical.

Adding to 43243225 its reverse (52234234), we get a palindrome (95477459).

The spelling of 43243225 in words is "forty-three million, two hundred forty-three thousand, two hundred twenty-five".