64389925 has 12 divisors (see below), whose sum is σ = 80593056. Its totient is φ = 51028400.

The previous prime is 64389911. The next prime is 64389959. The reversal of 64389925 is 52998346.

64389925 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 64389925 - 2¹⁷ = 64258853 is a prime.

It is a Duffinian number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 9361 + ... + 14710.

It is an arithmetic number, because the mean of its divisors is an integer number (6716088).

Almost surely, 2^64389925 is an apocalyptic number.

It is an amenable number.

64389925 is a deficient number, since it is larger than the sum of its proper divisors (16203131).

64389925 is a wasteful number, since it uses less digits than its factorization.

64389925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24188 (or 24183 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 64389925 is about 8024.3333056398. Note that the first 4 decimals coincide. The cubic root of 64389925 is about 400.8106995555.

The spelling of 64389925 in words is "sixty-four million, three hundred eighty-nine thousand, nine hundred twenty-five".