64445325 has 24 divisors (see below), whose sum is σ = 121771968. Its totient is φ = 29460480.

The previous prime is 64445309. The next prime is 64445327. The reversal of 64445325 is 52354446.

It is not a de Polignac number, because 64445325 - 2⁴ = 64445309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64445327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60852 + ... + 61901.

It is an arithmetic number, because the mean of its divisors is an integer number (5073832).

Almost surely, 2^64445325 is an apocalyptic number.

It is an amenable number.

64445325 is a deficient number, since it is larger than the sum of its proper divisors (57326643).

64445325 is a wasteful number, since it uses less digits than its factorization.

64445325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122773 (or 122768 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 64445325 is about 8027.7845636265. The cubic root of 64445325 is about 400.9256168481.

The spelling of 64445325 in words is "sixty-four million, four hundred forty-five thousand, three hundred twenty-five".