64536533 has 4 divisors (see below), whose sum is σ = 64553760. Its totient is φ = 64519308.

The previous prime is 64536523. The next prime is 64536553. The reversal of 64536533 is 33563546.

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 not a de Polignac number, because 64536533 - 2¹⁰ = 64535509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64536493 and 64536502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64536503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353 + ... + 11366.

It is an arithmetic number, because the mean of its divisors is an integer number (16138440).

Almost surely, 2^64536533 is an apocalyptic number.

It is an amenable number.

64536533 is a deficient number, since it is larger than the sum of its proper divisors (17227).

64536533 is a wasteful number, since it uses less digits than its factorization.

64536533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17226.

The product of its digits is 97200, while the sum is 35.

The square root of 64536533 is about 8033.4633253660. The cubic root of 64536533 is about 401.1146679862.

The spelling of 64536533 in words is "sixty-four million, five hundred thirty-six thousand, five hundred thirty-three".