64243425 has 24 divisors (see below), whose sum is σ = 112466016. Its totient is φ = 32247040.

The previous prime is 64243379. The next prime is 64243441. The reversal of 64243425 is 52434246.

64243425 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 64243425 - 2⁸ = 64243169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64243392 and 64243401.

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, 23919 + ... + 26468.

It is an arithmetic number, because the mean of its divisors is an integer number (4686084).

Almost surely, 2^64243425 is an apocalyptic number.

It is an amenable number.

64243425 is a deficient number, since it is larger than the sum of its proper divisors (48222591).

64243425 is a wasteful number, since it uses less digits than its factorization.

64243425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50417 (or 50412 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 64243425 is about 8015.1996232159. The cubic root of 64243425 is about 400.5064938060.

The spelling of 64243425 in words is "sixty-four million, two hundred forty-three thousand, four hundred twenty-five".