264550505 has 16 divisors (see below), whose sum is σ = 324053184. Its totient is φ = 207282240.

The previous prime is 264550501. The next prime is 264550523. The reversal of 264550505 is 505055462.

It is not a de Polignac number, because 264550505 - 2² = 264550501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264550501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58454 + ... + 62816.

It is an arithmetic number, because the mean of its divisors is an integer number (20253324).

Almost surely, 2^264550505 is an apocalyptic number.

It is an amenable number.

264550505 is a deficient number, since it is larger than the sum of its proper divisors (59502679).

264550505 is a wasteful number, since it uses less digits than its factorization.

264550505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 264550505 is about 16265.0086074370. The cubic root of 264550505 is about 641.9524563415.

The spelling of 264550505 in words is "two hundred sixty-four million, five hundred fifty thousand, five hundred five".