64533303 has 36 divisors (see below), whose sum is σ = 99144864. Its totient is φ = 40406400.

The previous prime is 64533269. The next prime is 64533307. The reversal of 64533303 is 30333546.

It is not a de Polignac number, because 64533303 - 2⁸ = 64533047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64533307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1057893 + ... + 1057953.

It is an arithmetic number, because the mean of its divisors is an integer number (2754024).

Almost surely, 2^64533303 is an apocalyptic number.

64533303 is a deficient number, since it is larger than the sum of its proper divisors (34611561).

64533303 is a wasteful number, since it uses less digits than its factorization.

64533303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 27.

The square root of 64533303 is about 8033.2622887592. The cubic root of 64533303 is about 401.1079760556.

Adding to 64533303 its reverse (30333546), we get a palindrome (94866849).

The spelling of 64533303 in words is "sixty-four million, five hundred thirty-three thousand, three hundred three".