65321601 has 32 divisors (see below), whose sum is σ = 97152000. Its totient is φ = 38864448.

The previous prime is 65321579. The next prime is 65321603. The reversal of 65321601 is 10612356.

65321601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65321601 - 2¹⁸ = 65059457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65321603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70620 + ... + 71538.

It is an arithmetic number, because the mean of its divisors is an integer number (3036000).

Almost surely, 2^65321601 is an apocalyptic number.

It is an amenable number.

65321601 is a deficient number, since it is larger than the sum of its proper divisors (31830399).

65321601 is a wasteful number, since it uses less digits than its factorization.

65321601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 65321601 is about 8082.1779861619. The cubic root of 65321601 is about 402.7345977516.

Adding to 65321601 its reverse (10612356), we get a palindrome (75933957).

The spelling of 65321601 in words is "sixty-five million, three hundred twenty-one thousand, six hundred one".