65289538 has 4 divisors (see below), whose sum is σ = 97934310. Its totient is φ = 32644768.

The previous prime is 65289517. The next prime is 65289559. The reversal of 65289538 is 83598256.

65289538 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 is an interprime number because it is at equal distance from previous prime (65289517) and next prime (65289559).

It can be written as a sum of positive squares in only one way, i.e., 33558849 + 31730689 = 5793^2 + 5633^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16322383 + ... + 16322386.

Almost surely, 2^65289538 is an apocalyptic number.

65289538 is a deficient number, since it is larger than the sum of its proper divisors (32644772).

65289538 is a wasteful number, since it uses less digits than its factorization.

65289538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32644771.

The product of its digits is 518400, while the sum is 46.

The square root of 65289538 is about 8080.1941808350. The cubic root of 65289538 is about 402.6686930966.

The spelling of 65289538 in words is "sixty-five million, two hundred eighty-nine thousand, five hundred thirty-eight".