43125500 has 48 divisors (see below), whose sum is σ = 102761568. Its totient is φ = 15680000.

The previous prime is 43125499. The next prime is 43125503. The reversal of 43125500 is 552134.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43125503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1580 + ... + 9420.

It is an arithmetic number, because the mean of its divisors is an integer number (2140866).

Almost surely, 2^43125500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43125500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51380784).

43125500 is an abundant number, since it is smaller than the sum of its proper divisors (59636068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43125500 is a wasteful number, since it uses less digits than its factorization.

43125500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7871 (or 7859 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 43125500 is about 6567.0008375209. Note that the first 3 decimals coincide. The cubic root of 43125500 is about 350.6803094507.

Adding to 43125500 its reverse (552134), we get a palindrome (43677634).

The spelling of 43125500 in words is "forty-three million, one hundred twenty-five thousand, five hundred".