64327525 has 6 divisors (see below), whose sum is σ = 79766162. Its totient is φ = 51462000.

The previous prime is 64327513. The next prime is 64327547. The reversal of 64327525 is 52572346.

It can be written as a sum of positive squares in 3 ways, for example, as 1252161 + 63075364 = 1119^2 + 7942^2 .

It is not a de Polignac number, because 64327525 - 2⁵ = 64327493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1286526 + ... + 1286575.

Almost surely, 2^64327525 is an apocalyptic number.

It is an amenable number.

64327525 is a deficient number, since it is larger than the sum of its proper divisors (15438637).

64327525 is a wasteful number, since it uses less digits than its factorization.

64327525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573111 (or 2573106 counting only the distinct ones).

The product of its digits is 50400, while the sum is 34.

The square root of 64327525 is about 8020.4441896942. Note that the first 3 decimals coincide. The cubic root of 64327525 is about 400.6811830656.

The spelling of 64327525 in words is "sixty-four million, three hundred twenty-seven thousand, five hundred twenty-five".