43280225 has 6 divisors (see below), whose sum is σ = 53667510. Its totient is φ = 34624160.

The previous prime is 43280219. The next prime is 43280239. The reversal of 43280225 is 52208234.

It can be written as a sum of positive squares in 3 ways, for example, as 9535744 + 33744481 = 3088^2 + 5809^2 .

It is not a de Polignac number, because 43280225 - 2¹⁸ = 43018081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43280194 and 43280203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 865580 + ... + 865629.

It is an arithmetic number, because the mean of its divisors is an integer number (8944585).

Almost surely, 2^43280225 is an apocalyptic number.

It is an amenable number.

43280225 is a deficient number, since it is larger than the sum of its proper divisors (10387285).

43280225 is a wasteful number, since it uses less digits than its factorization.

43280225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731219 (or 1731214 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 43280225 is about 6578.7707818406. The cubic root of 43280225 is about 351.0991973479.

Adding to 43280225 its reverse (52208234), we get a palindrome (95488459).

The spelling of 43280225 in words is "forty-three million, two hundred eighty thousand, two hundred twenty-five".