43253725 has 6 divisors (see below), whose sum is σ = 53634650. Its totient is φ = 34602960.

The previous prime is 43253723. The next prime is 43253753. The reversal of 43253725 is 52735234.

It can be written as a sum of positive squares in 3 ways, for example, as 8076964 + 35176761 = 2842^2 + 5931^2 .

It is not a de Polignac number, because 43253725 - 2¹ = 43253723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43253723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 865050 + ... + 865099.

Almost surely, 2^43253725 is an apocalyptic number.

It is an amenable number.

43253725 is a deficient number, since it is larger than the sum of its proper divisors (10380925).

43253725 is a wasteful number, since it uses less digits than its factorization.

43253725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730159 (or 1730154 counting only the distinct ones).

The product of its digits is 25200, while the sum is 31.

The square root of 43253725 is about 6576.7564193909. The cubic root of 43253725 is about 351.0275246744.

Adding to 43253725 its reverse (52735234), we get a palindrome (95988959).

The spelling of 43253725 in words is "forty-three million, two hundred fifty-three thousand, seven hundred twenty-five".