65282021 has 8 divisors (see below), whose sum is σ = 75269184. Its totient is φ = 55460160.

The previous prime is 65282011. The next prime is 65282033. The reversal of 65282021 is 12028256.

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

It is not a de Polignac number, because 65282021 - 2¹⁴ = 65265637 is a prime.

It is a super-3 number, since 3×65282021³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65282011) 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, 40475 + ... + 42056.

It is an arithmetic number, because the mean of its divisors is an integer number (9408648).

Almost surely, 2^65282021 is an apocalyptic number.

It is an amenable number.

65282021 is a deficient number, since it is larger than the sum of its proper divisors (9987163).

65282021 is a wasteful number, since it uses less digits than its factorization.

65282021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82651.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 65282021 is about 8079.7290177332. The cubic root of 65282021 is about 402.6532389783.

The spelling of 65282021 in words is "sixty-five million, two hundred eighty-two thousand, twenty-one".