65445299 has 4 divisors (see below), whose sum is σ = 65471064. Its totient is φ = 65419536.

The previous prime is 65445287. The next prime is 65445313. The reversal of 65445299 is 99254456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65445299 - 2⁴ = 65445283 is a prime.

It is a super-2 number, since 2×65445299² = 8566174322398802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65445229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8597 + ... + 14310.

It is an arithmetic number, because the mean of its divisors is an integer number (16367766).

Almost surely, 2^65445299 is an apocalyptic number.

65445299 is a deficient number, since it is larger than the sum of its proper divisors (25765).

65445299 is a wasteful number, since it uses less digits than its factorization.

65445299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25764.

The product of its digits is 388800, while the sum is 44.

The square root of 65445299 is about 8089.8268831910. The cubic root of 65445299 is about 402.9886538397.

The spelling of 65445299 in words is "sixty-five million, four hundred forty-five thousand, two hundred ninety-nine".