264553256 has 64 divisors (see below), whose sum is σ = 573903360. Its totient is φ = 113184000.

The previous prime is 264553249. The next prime is 264553273. The reversal of 264553256 is 652355462.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99626 + ... + 102246.

It is an arithmetic number, because the mean of its divisors is an integer number (8967240).

Almost surely, 2^264553256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264553256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286951680).

264553256 is an abundant number, since it is smaller than the sum of its proper divisors (309350104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264553256 is a wasteful number, since it uses less digits than its factorization.

264553256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706 (or 2702 counting only the distinct ones).

The product of its digits is 216000, while the sum is 38.

The square root of 264553256 is about 16265.0931752634. The cubic root of 264553256 is about 641.9546815059.

The spelling of 264553256 in words is "two hundred sixty-four million, five hundred fifty-three thousand, two hundred fifty-six".