64535501 has 4 divisors (see below), whose sum is σ = 64860000. Its totient is φ = 64211004.

The previous prime is 64535483. The next prime is 64535507. The reversal of 64535501 is 10553546.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64535501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64535507) 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 3 ways as a sum of consecutive naturals, for example, 161951 + ... + 162348.

It is an arithmetic number, because the mean of its divisors is an integer number (16215000).

Almost surely, 2^64535501 is an apocalyptic number.

It is an amenable number.

64535501 is a deficient number, since it is larger than the sum of its proper divisors (324499).

64535501 is a wasteful number, since it uses less digits than its factorization.

64535501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324498.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 64535501 is about 8033.3990937834. The cubic root of 64535501 is about 401.1125299076.

The spelling of 64535501 in words is "sixty-four million, five hundred thirty-five thousand, five hundred one".