65652001 has 4 divisors (see below), whose sum is σ = 66890772. Its totient is φ = 64413232.

The previous prime is 65651987. The next prime is 65652031. The reversal of 65652001 is 10025656.

65652001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57380625 + 8271376 = 7575^2 + 2876^2 .

It is not a de Polignac number, because 65652001 - 2⁹ = 65651489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65652031) 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 3 ways as a sum of consecutive naturals, for example, 619306 + ... + 619411.

It is an arithmetic number, because the mean of its divisors is an integer number (16722693).

Almost surely, 2^65652001 is an apocalyptic number.

It is an amenable number.

65652001 is a deficient number, since it is larger than the sum of its proper divisors (1238771).

65652001 is a wasteful number, since it uses less digits than its factorization.

65652001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238770.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 65652001 is about 8102.5922395243. The cubic root of 65652001 is about 403.4124735233.

Adding to 65652001 its reverse (10025656), we get a palindrome (75677657).

The spelling of 65652001 in words is "sixty-five million, six hundred fifty-two thousand, one".