65538635 has 4 divisors (see below), whose sum is σ = 78646368. Its totient is φ = 52430904.

The previous prime is 65538611. The next prime is 65538647. The reversal of 65538635 is 53683556.

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

It is a cyclic number.

It is not a de Polignac number, because 65538635 - 2¹⁰ = 65537611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65538592 and 65538601.

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, 6553859 + ... + 6553868.

It is an arithmetic number, because the mean of its divisors is an integer number (19661592).

Almost surely, 2^65538635 is an apocalyptic number.

65538635 is a deficient number, since it is larger than the sum of its proper divisors (13107733).

65538635 is a wasteful number, since it uses less digits than its factorization.

65538635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13107732.

The product of its digits is 324000, while the sum is 41.

The square root of 65538635 is about 8095.5935545209. The cubic root of 65538635 is about 403.1801393639.

The spelling of 65538635 in words is "sixty-five million, five hundred thirty-eight thousand, six hundred thirty-five".