264550005 has 24 divisors (see below), whose sum is σ = 485528472. Its totient is φ = 132793344.

The previous prime is 264549997. The next prime is 264550019. The reversal of 264550005 is 500055462.

It can be written as a sum of positive squares in 4 ways, for example, as 121484484 + 143065521 = 11022^2 + 11961^2 .

It is not a de Polignac number, because 264550005 - 2³ = 264549997 is a prime.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 172144 + ... + 173673.

It is an arithmetic number, because the mean of its divisors is an integer number (20230353).

Almost surely, 2^264550005 is an apocalyptic number.

It is an amenable number.

264550005 is a deficient number, since it is larger than the sum of its proper divisors (220978467).

264550005 is a wasteful number, since it uses less digits than its factorization.

264550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345845 (or 345842 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 264550005 is about 16264.9932370106. The cubic root of 264550005 is about 641.9520519115.

It can be divided in two parts, 2645 and 50005, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 264550005 in words is "two hundred sixty-four million, five hundred fifty thousand, five".