64381325 has 24 divisors (see below), whose sum is σ = 81661440. Its totient is φ = 50342400.

The previous prime is 64381321. The next prime is 64381333. The reversal of 64381325 is 52318346.

It is not a de Polignac number, because 64381325 - 2² = 64381321 is a prime.

Its product of digits (17280) is a multiple of the sum of its prime divisors (432).

It is a junction number, because it is equal to n+sod(n) for n = 64381291 and 64381300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64381321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336980 + ... + 337170.

It is an arithmetic number, because the mean of its divisors is an integer number (3402560).

Almost surely, 2^64381325 is an apocalyptic number.

It is an amenable number.

64381325 is a deficient number, since it is larger than the sum of its proper divisors (17280115).

64381325 is a wasteful number, since it uses less digits than its factorization.

64381325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 432 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 64381325 is about 8023.7974176820. The cubic root of 64381325 is about 400.7928544994.

The spelling of 64381325 in words is "sixty-four million, three hundred eighty-one thousand, three hundred twenty-five".