10556605 has 4 divisors (see below), whose sum is σ = 12667932. Its totient is φ = 8445280.

The previous prime is 10556591. The next prime is 10556617. The reversal of 10556605 is 50665501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50665501 = 31 ⋅1634371.

It can be written as a sum of positive squares in 2 ways, for example, as 5812921 + 4743684 = 2411^2 + 2178^2 .

It is not a de Polignac number, because 10556605 - 2⁹ = 10556093 is a prime.

It is a super-2 number, since 2×10556605² = 222883818252050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055656 + ... + 1055665.

It is an arithmetic number, because the mean of its divisors is an integer number (3166983).

Almost surely, 2^10556605 is an apocalyptic number.

It is an amenable number.

10556605 is a deficient number, since it is larger than the sum of its proper divisors (2111327).

10556605 is an equidigital number, since it uses as much as digits as its factorization.

10556605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111326.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 10556605 is about 3249.0929503478. The cubic root of 10556605 is about 219.3687483168.

The spelling of 10556605 in words is "ten million, five hundred fifty-six thousand, six hundred five".