43253525 has 72 divisors (see below), whose sum is σ = 69209856. Its totient is φ = 26611200.

The previous prime is 43253521. The next prime is 43253531. The reversal of 43253525 is 52535234.

It is not a de Polignac number, because 43253525 - 2² = 43253521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43253521) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 645542 + ... + 645608.

It is an arithmetic number, because the mean of its divisors is an integer number (961248).

Almost surely, 2^43253525 is an apocalyptic number.

It is an amenable number.

43253525 is a deficient number, since it is larger than the sum of its proper divisors (25956331).

43253525 is a wasteful number, since it uses less digits than its factorization.

43253525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 127 counting only the distinct ones).

The product of its digits is 18000, while the sum is 29.

The square root of 43253525 is about 6576.7412143097. The cubic root of 43253525 is about 351.0269836372.

Adding to 43253525 its reverse (52535234), we get a palindrome (95788759).

The spelling of 43253525 in words is "forty-three million, two hundred fifty-three thousand, five hundred twenty-five".