264448505 has 4 divisors (see below), whose sum is σ = 317338212. Its totient is φ = 211558800.

The previous prime is 264448453. The next prime is 264448523. The reversal of 264448505 is 505844462.

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 88435216 + 176013289 = 9404^2 + 13267^2 .

It is not a de Polignac number, because 264448505 - 2¹⁸ = 264186361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26444846 + ... + 26444855.

It is an arithmetic number, because the mean of its divisors is an integer number (79334553).

Almost surely, 2^264448505 is an apocalyptic number.

It is an amenable number.

264448505 is a deficient number, since it is larger than the sum of its proper divisors (52889707).

264448505 is an equidigital number, since it uses as much as digits as its factorization.

264448505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52889706.

The product of its (nonzero) digits is 153600, while the sum is 38.

The square root of 264448505 is about 16261.8727396324. The cubic root of 264448505 is about 641.8699420811.

The spelling of 264448505 in words is "two hundred sixty-four million, four hundred forty-eight thousand, five hundred five".