65065601 has 4 divisors (see below), whose sum is σ = 65259012. Its totient is φ = 64872192.

The previous prime is 65065577. The next prime is 65065661. The reversal of 65065601 is 10656056.

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 10660225 + 54405376 = 3265^2 + 7376^2 .

It is a cyclic number.

It is not a de Polignac number, because 65065601 - 2⁶ = 65065537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65065661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96200 + ... + 96873.

It is an arithmetic number, because the mean of its divisors is an integer number (16314753).

Almost surely, 2^65065601 is an apocalyptic number.

It is an amenable number.

65065601 is a deficient number, since it is larger than the sum of its proper divisors (193411).

65065601 is a wasteful number, since it uses less digits than its factorization.

65065601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193410.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 65065601 is about 8066.3251236235. The cubic root of 65065601 is about 402.2077937800.

The spelling of 65065601 in words is "sixty-five million, sixty-five thousand, six hundred one".