64725 has 12 divisors (see below), whose sum is σ = 107136. Its totient is φ = 34480.

The previous prime is 64717. The next prime is 64747. The reversal of 64725 is 52746.

It is a happy number.

It is not a de Polignac number, because 64725 - 2³ = 64717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64695 and 64704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357 + ... + 506.

It is an arithmetic number, because the mean of its divisors is an integer number (8928).

2⁶⁴⁷²⁵ is an apocalyptic number.

It is an amenable number.

64725 is a deficient number, since it is larger than the sum of its proper divisors (42411).

64725 is a wasteful number, since it uses less digits than its factorization.

64725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 871 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 64725 is about 254.4110846642. The cubic root of 64725 is about 40.1504748895.

The spelling of 64725 in words is "sixty-four thousand, seven hundred twenty-five".