65052021 has 8 divisors (see below), whose sum is σ = 86817760. Its totient is φ = 43327152.

The previous prime is 65052007. The next prime is 65052037. The reversal of 65052021 is 12025056.

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

It is not a de Polignac number, because 65052021 - 2⁷ = 65051893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65052721) 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, 6286 + ... + 13023.

It is an arithmetic number, because the mean of its divisors is an integer number (10852220).

Almost surely, 2^65052021 is an apocalyptic number.

It is an amenable number.

65052021 is a deficient number, since it is larger than the sum of its proper divisors (21765739).

65052021 is a wasteful number, since it uses less digits than its factorization.

65052021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20435.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 65052021 is about 8065.4833085191. The cubic root of 65052021 is about 402.1798099104.

Adding to 65052021 its reverse (12025056), we get a palindrome (77077077).

The spelling of 65052021 in words is "sixty-five million, fifty-two thousand, twenty-one".