65499289 has 8 divisors (see below), whose sum is σ = 69452640. Its totient is φ = 61596576.

The previous prime is 65499281. The next prime is 65499293. The reversal of 65499289 is 98299456.

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

It is a cyclic number.

It is not a de Polignac number, because 65499289 - 2³ = 65499281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65499281) 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, 9979 + ... + 15184.

It is an arithmetic number, because the mean of its divisors is an integer number (8681580).

Almost surely, 2^65499289 is an apocalyptic number.

It is an amenable number.

65499289 is a deficient number, since it is larger than the sum of its proper divisors (3953351).

65499289 is a wasteful number, since it uses less digits than its factorization.

65499289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25319.

The product of its digits is 1399680, while the sum is 52.

The square root of 65499289 is about 8093.1631022734. The cubic root of 65499289 is about 403.0994403922.

The spelling of 65499289 in words is "sixty-five million, four hundred ninety-nine thousand, two hundred eighty-nine".