65289539 has 8 divisors (see below), whose sum is σ = 74786400. Its totient is φ = 55835136.

The previous prime is 65289517. The next prime is 65289559. The reversal of 65289539 is 93598256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65289539 - 2⁸ = 65289283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65289493 and 65289502.

It is not an unprimeable number, because it can be changed into a prime (65289509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7244 + ... + 13529.

It is an arithmetic number, because the mean of its divisors is an integer number (9348300).

Almost surely, 2^65289539 is an apocalyptic number.

65289539 is a deficient number, since it is larger than the sum of its proper divisors (9496861).

65289539 is a wasteful number, since it uses less digits than its factorization.

65289539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21229.

The product of its digits is 583200, while the sum is 47.

The square root of 65289539 is about 8080.1942427147. The cubic root of 65289539 is about 402.6686951524.

The spelling of 65289539 in words is "sixty-five million, two hundred eighty-nine thousand, five hundred thirty-nine".