64677325 has 6 divisors (see below), whose sum is σ = 80199914. Its totient is φ = 51741840.

The previous prime is 64677307. The next prime is 64677329. The reversal of 64677325 is 52377646.

It can be written as a sum of positive squares in 3 ways, for example, as 16499844 + 48177481 = 4062^2 + 6941^2 .

It is not a de Polignac number, because 64677325 - 2⁹ = 64676813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64677329) 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 5 ways as a sum of consecutive naturals, for example, 1293522 + ... + 1293571.

Almost surely, 2^64677325 is an apocalyptic number.

It is an amenable number.

64677325 is a deficient number, since it is larger than the sum of its proper divisors (15522589).

64677325 is a wasteful number, since it uses less digits than its factorization.

64677325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587103 (or 2587098 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The square root of 64677325 is about 8042.2213971017. The cubic root of 64677325 is about 401.4061448494.

The spelling of 64677325 in words is "sixty-four million, six hundred seventy-seven thousand, three hundred twenty-five".