65013653 has 4 divisors (see below), whose sum is σ = 65048268. Its totient is φ = 64979040.

The previous prime is 65013647. The next prime is 65013673. The reversal of 65013653 is 35631056.

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 43270084 + 21743569 = 6578^2 + 4663^2 .

It is a cyclic number.

It is not a de Polignac number, because 65013653 - 2⁶ = 65013589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65013623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14318 + ... + 18303.

It is an arithmetic number, because the mean of its divisors is an integer number (16262067).

Almost surely, 2^65013653 is an apocalyptic number.

It is an amenable number.

65013653 is a deficient number, since it is larger than the sum of its proper divisors (34615).

65013653 is a wasteful number, since it uses less digits than its factorization.

65013653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34614.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 65013653 is about 8063.1044269562. The cubic root of 65013653 is about 402.1007251542.

The spelling of 65013653 in words is "sixty-five million, thirteen thousand, six hundred fifty-three".