43420025 has 24 divisors (see below), whose sum is σ = 60183648. Its totient is φ = 30800000.

The previous prime is 43420007. The next prime is 43420031. The reversal of 43420025 is 52002434.

43420025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43420025 - 2¹⁰ = 43419001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43419979 and 43420006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9350 + ... + 13200.

It is an arithmetic number, because the mean of its divisors is an integer number (2507652).

Almost surely, 2^43420025 is an apocalyptic number.

It is an amenable number.

43420025 is a deficient number, since it is larger than the sum of its proper divisors (16763623).

43420025 is a wasteful number, since it uses less digits than its factorization.

43420025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913 (or 3908 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 43420025 is about 6589.3873008042. The cubic root of 43420025 is about 351.4768210304.

Adding to 43420025 its reverse (52002434), we get a palindrome (95422459).

The spelling of 43420025 in words is "forty-three million, four hundred twenty thousand, twenty-five".