10855805 has 4 divisors (see below), whose sum is σ = 13026972. Its totient is φ = 8684640.

The previous prime is 10855799. The next prime is 10855811. The reversal of 10855805 is 50855801.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (10855799) and next prime (10855811).

It can be written as a sum of positive squares in 2 ways, for example, as 5597956 + 5257849 = 2366^2 + 2293^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10855805 is a prime.

It is a Duffinian number.

It is a Curzon 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, 1085576 + ... + 1085585.

It is an arithmetic number, because the mean of its divisors is an integer number (3256743).

Almost surely, 2^10855805 is an apocalyptic number.

It is an amenable number.

10855805 is a deficient number, since it is larger than the sum of its proper divisors (2171167).

10855805 is an equidigital number, since it uses as much as digits as its factorization.

10855805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171166.

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 10855805 is about 3294.8148658157. The cubic root of 10855805 is about 221.4219534219.

The spelling of 10855805 in words is "ten million, eight hundred fifty-five thousand, eight hundred five".