264256223 has 16 divisors (see below), whose sum is σ = 343789056. Its totient is φ = 196959840.

The previous prime is 264256217. The next prime is 264256243. The reversal of 264256223 is 322652462.

It is not a de Polignac number, because 264256223 - 2⁶ = 264256159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264256223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264256243) 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 15 ways as a sum of consecutive naturals, for example, 72836 + ... + 76377.

It is an arithmetic number, because the mean of its divisors is an integer number (21486816).

Almost surely, 2^264256223 is an apocalyptic number.

264256223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

264256223 is a deficient number, since it is larger than the sum of its proper divisors (79532833).

264256223 is a wasteful number, since it uses less digits than its factorization.

264256223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149254.

The product of its digits is 34560, while the sum is 32.

The square root of 264256223 is about 16255.9596148613. The cubic root of 264256223 is about 641.7143352754.

The spelling of 264256223 in words is "two hundred sixty-four million, two hundred fifty-six thousand, two hundred twenty-three".