64361525 has 6 divisors (see below), whose sum is σ = 79808322. Its totient is φ = 51489200.

The previous prime is 64361509. The next prime is 64361551. The reversal of 64361525 is 52516346.

64361525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11464996 + 52896529 = 3386^2 + 7273^2 .

It is not a de Polignac number, because 64361525 - 2⁴ = 64361509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64361491 and 64361500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1287206 + ... + 1287255.

It is an arithmetic number, because the mean of its divisors is an integer number (13301387).

Almost surely, 2^64361525 is an apocalyptic number.

It is an amenable number.

64361525 is a deficient number, since it is larger than the sum of its proper divisors (15446797).

64361525 is a wasteful number, since it uses less digits than its factorization.

64361525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574471 (or 2574466 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 64361525 is about 8022.5634930488. The cubic root of 64361525 is about 400.7517633280.

The spelling of 64361525 in words is "sixty-four million, three hundred sixty-one thousand, five hundred twenty-five".