43004425 has 6 divisors (see below), whose sum is σ = 53325518. Its totient is φ = 34403520.

The previous prime is 43004417. The next prime is 43004431. The reversal of 43004425 is 52440034.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 350464 + 42653961 = 592^2 + 6531^2 .

It is not a de Polignac number, because 43004425 - 2³ = 43004417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43004396 and 43004405.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 860064 + ... + 860113.

Almost surely, 2^43004425 is an apocalyptic number.

It is an amenable number.

43004425 is a deficient number, since it is larger than the sum of its proper divisors (10321093).

43004425 is a wasteful number, since it uses less digits than its factorization.

43004425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720187 (or 1720182 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 43004425 is about 6557.7759187090. The cubic root of 43004425 is about 350.3518230966.

Adding to 43004425 its reverse (52440034), we get a palindrome (95444459).

The spelling of 43004425 in words is "forty-three million, four thousand, four hundred twenty-five".