264987533 has 8 divisors (see below), whose sum is σ = 267805440. Its totient is φ = 262176160.

The previous prime is 264987523. The next prime is 264987553. The reversal of 264987533 is 335789462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 264987533 - 2¹⁰ = 264986509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264987523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153113 + ... + 154833.

It is an arithmetic number, because the mean of its divisors is an integer number (33475680).

Almost surely, 2^264987533 is an apocalyptic number.

It is an amenable number.

264987533 is a deficient number, since it is larger than the sum of its proper divisors (2817907).

264987533 is a wasteful number, since it uses less digits than its factorization.

264987533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267.

The product of its digits is 1088640, while the sum is 47.

The square root of 264987533 is about 16278.4376707349. The cubic root of 264987533 is about 642.3057560550.

The spelling of 264987533 in words is "two hundred sixty-four million, nine hundred eighty-seven thousand, five hundred thirty-three".