43424225 has 24 divisors (see below), whose sum is σ = 59105592. Its totient is φ = 31449600.

The previous prime is 43424219. The next prime is 43424231. The reversal of 43424225 is 52242434.

It is a happy number.

43424225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43424219) and next prime (43424231).

It can be written as a sum of positive squares in 12 ways, for example, as 30514576 + 12909649 = 5524^2 + 3593^2 .

It is not a de Polignac number, because 43424225 - 2⁸ = 43423969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43424194 and 43424203.

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 23 ways as a sum of consecutive naturals, for example, 15965 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (2462733).

Almost surely, 2^43424225 is an apocalyptic number.

It is an amenable number.

43424225 is a deficient number, since it is larger than the sum of its proper divisors (15681367).

43424225 is a wasteful number, since it uses less digits than its factorization.

43424225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597 (or 2592 counting only the distinct ones).

The product of its digits is 7680, while the sum is 26.

The square root of 43424225 is about 6589.7059873715. The cubic root of 43424225 is about 351.4881533980.

Adding to 43424225 its reverse (52242434), we get a palindrome (95666659).

The spelling of 43424225 in words is "forty-three million, four hundred twenty-four thousand, two hundred twenty-five".