43725 has 24 divisors (see below), whose sum is σ = 80352. Its totient is φ = 20800.

The previous prime is 43721. The next prime is 43753. The reversal of 43725 is 52734.

It is a happy number.

It is not a de Polignac number, because 43725 - 2² = 43721 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 799 + ... + 851.

It is an arithmetic number, because the mean of its divisors is an integer number (3348).

2⁴³⁷²⁵ is an apocalyptic number.

It is an amenable number.

43725 is a deficient number, since it is larger than the sum of its proper divisors (36627).

43725 is a wasteful number, since it uses less digits than its factorization.

43725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 72 counting only the distinct ones).

The product of its digits is 840, while the sum is 21.

The square root of 43725 is about 209.1052366633. The cubic root of 43725 is about 35.2297806684.

Subtracting 43725 from its reverse (52734), we obtain a palindrome (9009).

The spelling of 43725 in words is "forty-three thousand, seven hundred twenty-five".