10505305 has 4 divisors (see below), whose sum is σ = 12606372. Its totient is φ = 8404240.

The previous prime is 10505291. The next prime is 10505317. The reversal of 10505305 is 50350501.

10505305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 1245456 + 9259849 = 1116^2 + 3043^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10505305 is a prime.

It is a super-2 number, since 2×10505305² = 220722866286050, which contains 22 as substring.

It is a Duffinian 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, 1050526 + ... + 1050535.

It is an arithmetic number, because the mean of its divisors is an integer number (3151593).

Almost surely, 2^10505305 is an apocalyptic number.

It is an amenable number.

10505305 is a deficient number, since it is larger than the sum of its proper divisors (2101067).

10505305 is an equidigital number, since it uses as much as digits as its factorization.

10505305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101066.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 10505305 is about 3241.1888251072. The cubic root of 10505305 is about 219.0128291172.

Adding to 10505305 its reverse (50350501), we get a palindrome (60855806).

The spelling of 10505305 in words is "ten million, five hundred five thousand, three hundred five".