65508242 has 16 divisors (see below), whose sum is σ = 106582392. Its totient is φ = 30074880.

The previous prime is 65508211. The next prime is 65508319. The reversal of 65508242 is 24280556.

It can be written as a sum of positive squares in 4 ways, for example, as 30591961 + 34916281 = 5531^2 + 5909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65508199 and 65508208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22103 + ... + 24890.

Almost surely, 2^65508242 is an apocalyptic number.

65508242 is a deficient number, since it is larger than the sum of its proper divisors (41074150).

65508242 is a wasteful number, since it uses less digits than its factorization.

65508242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47053.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 65508242 is about 8093.7162045626. The cubic root of 65508242 is about 403.1178059089.

Adding to 65508242 its reverse (24280556), we get a palindrome (89788798).

The spelling of 65508242 in words is "sixty-five million, five hundred eight thousand, two hundred forty-two".