65537009 has 4 divisors (see below), whose sum is σ = 65555940. Its totient is φ = 65518080.

The previous prime is 65536987. The next prime is 65537011. The reversal of 65537009 is 90073556.

65537009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 30691600 + 34845409 = 5540^2 + 5903^2 .

It is a cyclic number.

It is not a de Polignac number, because 65537009 - 2¹² = 65532913 is a prime.

It is a super-3 number, since 3×65537009³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65537009.

It is not an unprimeable number, because it can be changed into a prime (65537029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2624 + ... + 11745.

It is an arithmetic number, because the mean of its divisors is an integer number (16388985).

Almost surely, 2^65537009 is an apocalyptic number.

It is an amenable number.

65537009 is a deficient number, since it is larger than the sum of its proper divisors (18931).

65537009 is a wasteful number, since it uses less digits than its factorization.

65537009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18930.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 65537009 is about 8095.4931288959. The cubic root of 65537009 is about 403.1768050644.

The spelling of 65537009 in words is "sixty-five million, five hundred thirty-seven thousand, nine".