264000505 has 8 divisors (see below), whose sum is σ = 318745152. Its totient is φ = 209904048.

The previous prime is 264000491. The next prime is 264000523. The reversal of 264000505 is 505000462.

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 264000505 - 2⁷ = 264000377 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161149 + ... + 162778.

It is an arithmetic number, because the mean of its divisors is an integer number (39843144).

Almost surely, 2^264000505 is an apocalyptic number.

It is an amenable number.

264000505 is a deficient number, since it is larger than the sum of its proper divisors (54744647).

264000505 is a wasteful number, since it uses less digits than its factorization.

264000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324095.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 264000505 is about 16248.0923495652. The cubic root of 264000505 is about 641.5072750405.

Adding to 264000505 its reverse (505000462), we get a palindrome (769000967).

The spelling of 264000505 in words is "two hundred sixty-four million, five hundred five", and thus it is an aban number.