64366325 has 6 divisors (see below), whose sum is σ = 79814274. Its totient is φ = 51493040.

The previous prime is 64366321. The next prime is 64366331. The reversal of 64366325 is 52366346.

It can be written as a sum of positive squares in 3 ways, for example, as 142129 + 64224196 = 377^2 + 8014^2 .

It is not a de Polignac number, because 64366325 - 2² = 64366321 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 (64366321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1287302 + ... + 1287351.

It is an arithmetic number, because the mean of its divisors is an integer number (13302379).

Almost surely, 2^64366325 is an apocalyptic number.

It is an amenable number.

64366325 is a deficient number, since it is larger than the sum of its proper divisors (15447949).

64366325 is a wasteful number, since it uses less digits than its factorization.

64366325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574663 (or 2574658 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

The square root of 64366325 is about 8022.8626437201. The cubic root of 64366325 is about 400.7617255978.

The spelling of 64366325 in words is "sixty-four million, three hundred sixty-six thousand, three hundred twenty-five".