43242425 has 6 divisors (see below), whose sum is σ = 53620638. Its totient is φ = 34593920.

The previous prime is 43242383. The next prime is 43242439. The reversal of 43242425 is 52424234.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2128681 + 41113744 = 1459^2 + 6412^2 .

It is not a de Polignac number, because 43242425 - 2⁶ = 43242361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43242394 and 43242403.

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, 864824 + ... + 864873.

It is an arithmetic number, because the mean of its divisors is an integer number (8936773).

Almost surely, 2^43242425 is an apocalyptic number.

It is an amenable number.

43242425 is a deficient number, since it is larger than the sum of its proper divisors (10378213).

43242425 is a wasteful number, since it uses less digits than its factorization.

43242425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729707 (or 1729702 counting only the distinct ones).

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

The square root of 43242425 is about 6575.8972771782. The cubic root of 43242425 is about 350.9969534615.

Adding to 43242425 its reverse (52424234), we get a palindrome (95666659).

The spelling of 43242425 in words is "forty-three million, two hundred forty-two thousand, four hundred twenty-five".