65484521 has 8 divisors (see below), whose sum is σ = 66972744. Its totient is φ = 64005760.

The previous prime is 65484491. The next prime is 65484539. The reversal of 65484521 is 12548456.

It can be written as a sum of positive squares in 4 ways, for example, as 20070400 + 45414121 = 4480^2 + 6739^2 .

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 65484521 - 2¹⁰ = 65483497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65484721) 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 7 ways as a sum of consecutive naturals, for example, 12695 + ... + 17091.

It is an arithmetic number, because the mean of its divisors is an integer number (8371593).

Almost surely, 2^65484521 is an apocalyptic number.

It is an amenable number.

65484521 is a deficient number, since it is larger than the sum of its proper divisors (1488223).

65484521 is a wasteful number, since it uses less digits than its factorization.

65484521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4731.

The product of its digits is 38400, while the sum is 35.

The square root of 65484521 is about 8092.2506758009. The cubic root of 65484521 is about 403.0691427605.

The spelling of 65484521 in words is "sixty-five million, four hundred eighty-four thousand, five hundred twenty-one".