64535601 has 16 divisors (see below), whose sum is σ = 92877120. Its totient is φ = 39624000.

The previous prime is 64535579. The next prime is 64535617. The reversal of 64535601 is 10653546.

It is not a de Polignac number, because 64535601 - 2⁷ = 64535473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64535651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18226 + ... + 21476.

It is an arithmetic number, because the mean of its divisors is an integer number (5804820).

Almost surely, 2^64535601 is an apocalyptic number.

It is an amenable number.

64535601 is a deficient number, since it is larger than the sum of its proper divisors (28341519).

64535601 is a wasteful number, since it uses less digits than its factorization.

64535601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3776.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 64535601 is about 8033.4053177964. The cubic root of 64535601 is about 401.1127370867.

The spelling of 64535601 in words is "sixty-four million, five hundred thirty-five thousand, six hundred one".