63409425 has 12 divisors (see below), whose sum is σ = 104837040. Its totient is φ = 33818320.

The previous prime is 63409421. The next prime is 63409447. The reversal of 63409425 is 52490436.

63409425 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 63409425 - 2² = 63409421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63409421) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 422655 + ... + 422804.

It is an arithmetic number, because the mean of its divisors is an integer number (8736420).

Almost surely, 2^63409425 is an apocalyptic number.

It is an amenable number.

63409425 is a deficient number, since it is larger than the sum of its proper divisors (41427615).

63409425 is a wasteful number, since it uses less digits than its factorization.

63409425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845472 (or 845467 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 63409425 is about 7963.0035162619. The cubic root of 63409425 is about 398.7658314027.

The spelling of 63409425 in words is "sixty-three million, four hundred nine thousand, four hundred twenty-five".