64006501 has 4 divisors (see below), whose sum is σ = 68930092. Its totient is φ = 59082912.

The previous prime is 64006499. The next prime is 64006531. The reversal of 64006501 is 10560046.

64006501 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 10336225 + 53670276 = 3215^2 + 7326^2 .

It is a cyclic number.

It is not a de Polignac number, because 64006501 - 2¹ = 64006499 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 (64006531) 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, 2461776 + ... + 2461801.

It is an arithmetic number, because the mean of its divisors is an integer number (17232523).

Almost surely, 2^64006501 is an apocalyptic number.

It is an amenable number.

64006501 is a deficient number, since it is larger than the sum of its proper divisors (4923591).

64006501 is a wasteful number, since it uses less digits than its factorization.

64006501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923590.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 64006501 is about 8000.4063021824. The cubic root of 64006501 is about 400.0135432914.

Adding to 64006501 its reverse (10560046), we get a palindrome (74566547).

The spelling of 64006501 in words is "sixty-four million, six thousand, five hundred one".