60640565 has 4 divisors (see below), whose sum is σ = 72768684. Its totient is φ = 48512448.

The previous prime is 60640549. The next prime is 60640577. The reversal of 60640565 is 56504606.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20811844 + 39828721 = 4562^2 + 6311^2 .

It is a cyclic number.

It is not a de Polignac number, because 60640565 - 2⁴ = 60640549 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 3 ways as a sum of consecutive naturals, for example, 6064052 + ... + 6064061.

It is an arithmetic number, because the mean of its divisors is an integer number (18192171).

Almost surely, 2^60640565 is an apocalyptic number.

It is an amenable number.

60640565 is a deficient number, since it is larger than the sum of its proper divisors (12128119).

60640565 is a wasteful number, since it uses less digits than its factorization.

60640565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12128118.

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

The square root of 60640565 is about 7787.2052111139. The cubic root of 60640565 is about 392.8750171797.

The spelling of 60640565 in words is "sixty million, six hundred forty thousand, five hundred sixty-five".