43500225 has 24 divisors (see below), whose sum is σ = 72113440. Its totient is φ = 23137920.

The previous prime is 43500211. The next prime is 43500241. The reversal of 43500225 is 52200534.

It is not a de Polignac number, because 43500225 - 2⁷ = 43500097 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45957 + ... + 46893.

Almost surely, 2^43500225 is an apocalyptic number.

It is an amenable number.

43500225 is a deficient number, since it is larger than the sum of its proper divisors (28613215).

43500225 is a wasteful number, since it uses less digits than its factorization.

43500225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1564 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 43500225 is about 6595.4700363204. The cubic root of 43500225 is about 351.6930891652.

Adding to 43500225 its reverse (52200534), we get a palindrome (95700759).

The spelling of 43500225 in words is "forty-three million, five hundred thousand, two hundred twenty-five".