65289517 has 2 divisors, whose sum is σ = 65289518. Its totient is φ = 65289516.

The previous prime is 65289509. The next prime is 65289559. The reversal of 65289517 is 71598256.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62821476 + 2468041 = 7926^2 + 1571^2 .

It is a cyclic number.

It is not a de Polignac number, because 65289517 - 2³ = 65289509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65286517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32644758 + 32644759.

It is an arithmetic number, because the mean of its divisors is an integer number (32644759).

Almost surely, 2^65289517 is an apocalyptic number.

It is an amenable number.

65289517 is a deficient number, since it is larger than the sum of its proper divisors (1).

65289517 is an equidigital number, since it uses as much as digits as its factorization.

65289517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 43.

The square root of 65289517 is about 8080.1928813612. The cubic root of 65289517 is about 402.6686499246.

The spelling of 65289517 in words is "sixty-five million, two hundred eighty-nine thousand, five hundred seventeen".