264350005 has 4 divisors (see below), whose sum is σ = 317220012. Its totient is φ = 211480000.

The previous prime is 264349991. The next prime is 264350011. The reversal of 264350005 is 500053462.

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 148206276 + 116143729 = 12174^2 + 10777^2 .

It is not a de Polignac number, because 264350005 - 2²¹ = 262252853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26434996 + ... + 26435005.

It is an arithmetic number, because the mean of its divisors is an integer number (79305003).

Almost surely, 2^264350005 is an apocalyptic number.

It is an amenable number.

264350005 is a deficient number, since it is larger than the sum of its proper divisors (52870007).

264350005 is an equidigital number, since it uses as much as digits as its factorization.

264350005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52870006.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 264350005 is about 16258.8439010896. The cubic root of 264350005 is about 641.7902390520.

The spelling of 264350005 in words is "two hundred sixty-four million, three hundred fifty thousand, five".