42241025 has 6 divisors (see below), whose sum is σ = 52378902. Its totient is φ = 33792800.

The previous prime is 42240977. The next prime is 42241027. The reversal of 42241025 is 52014224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9431041 + 32809984 = 3071^2 + 5728^2 .

It is not a de Polignac number, because 42241025 - 2⁸ = 42240769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42240988 and 42241006.

It is not an unprimeable number, because it can be changed into a prime (42241027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 844796 + ... + 844845.

It is an arithmetic number, because the mean of its divisors is an integer number (8729817).

Almost surely, 2^42241025 is an apocalyptic number.

It is an amenable number.

42241025 is a deficient number, since it is larger than the sum of its proper divisors (10137877).

42241025 is a wasteful number, since it uses less digits than its factorization.

42241025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689651 (or 1689646 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42241025 is about 6499.3095787168. The cubic root of 42241025 is about 348.2663246230.

Adding to 42241025 its reverse (52014224), we get a palindrome (94255249).

The spelling of 42241025 in words is "forty-two million, two hundred forty-one thousand, twenty-five".