264533 has 4 divisors (see below), whose sum is σ = 266988. Its totient is φ = 262080.

The previous prime is 264529. The next prime is 264553. The reversal of 264533 is 335462.

264533 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69169 + 195364 = 263^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 264533 - 2² = 264529 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 6² + 5³ + 4⁹ + 3² + 3⁷ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264499 and 264508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1058 + ... + 1283.

It is an arithmetic number, because the mean of its divisors is an integer number (66747).

2²⁶⁴⁵³³ is an apocalyptic number.

It is an amenable number.

264533 is a deficient number, since it is larger than the sum of its proper divisors (2455).

264533 is a wasteful number, since it uses less digits than its factorization.

264533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2454.

The product of its digits is 2160, while the sum is 23.

The square root of 264533 is about 514.3277165388. The cubic root of 264533 is about 64.1938296946.

Adding to 264533 its reverse (335462), we get a palindrome (599995).

It can be divided in two parts, 264 and 533, that added together give a palindrome (797).

The spelling of 264533 in words is "two hundred sixty-four thousand, five hundred thirty-three".