64003533 has 16 divisors (see below), whose sum is σ = 97996800. Its totient is φ = 36748080.

The previous prime is 64003531. The next prime is 64003543. The reversal of 64003533 is 33530046.

It is not a de Polignac number, because 64003533 - 2¹ = 64003531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64003531) 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, 50413 + ... + 51666.

It is an arithmetic number, because the mean of its divisors is an integer number (6124800).

Almost surely, 2^64003533 is an apocalyptic number.

It is an amenable number.

64003533 is a deficient number, since it is larger than the sum of its proper divisors (33993267).

64003533 is a wasteful number, since it uses less digits than its factorization.

64003533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102112.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 64003533 is about 8000.2208094527. The cubic root of 64003533 is about 400.0073602812.

Adding to 64003533 its reverse (33530046), we get a palindrome (97533579).

The spelling of 64003533 in words is "sixty-four million, three thousand, five hundred thirty-three".