64553325 has 24 divisors (see below), whose sum is σ = 109004928. Its totient is φ = 33694080.

The previous prime is 64553323. The next prime is 64553329. The reversal of 64553325 is 52335546.

64553325 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 64553325 - 2¹ = 64553323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64553323) 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 23 ways as a sum of consecutive naturals, for example, 5632 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (4541872).

Almost surely, 2^64553325 is an apocalyptic number.

It is an amenable number.

64553325 is a deficient number, since it is larger than the sum of its proper divisors (44451603).

64553325 is a wasteful number, since it uses less digits than its factorization.

64553325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373 (or 18368 counting only the distinct ones).

The product of its digits is 54000, while the sum is 33.

The square root of 64553325 is about 8034.5083857072. The cubic root of 64553325 is about 401.1494541406.

The spelling of 64553325 in words is "sixty-four million, five hundred fifty-three thousand, three hundred twenty-five".