64671125 has 16 divisors (see below), whose sum is σ = 81509376. Its totient is φ = 51224400.

The previous prime is 64671109. The next prime is 64671127. The reversal of 64671125 is 52117646.

It is not a de Polignac number, because 64671125 - 2⁴ = 64671109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64671091 and 64671100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64671127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10364 + ... + 15386.

It is an arithmetic number, because the mean of its divisors is an integer number (5094336).

Almost surely, 2^64671125 is an apocalyptic number.

It is an amenable number.

64671125 is a deficient number, since it is larger than the sum of its proper divisors (16838251).

64671125 is a wasteful number, since it uses less digits than its factorization.

64671125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141 (or 5131 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 64671125 is about 8041.8359222257. The cubic root of 64671125 is about 401.3933181097.

The spelling of 64671125 in words is "sixty-four million, six hundred seventy-one thousand, one hundred twenty-five".