10656505 has 8 divisors (see below), whose sum is σ = 12839112. Its totient is φ = 8491008.

The previous prime is 10656479. The next prime is 10656509. The reversal of 10656505 is 50565601.

10656505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2471184 + 8185321 = 1572^2 + 2861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10656505 - 2⁷ = 10656377 is a prime.

It is a super-2 number, since 2×10656505² = 227122197630050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10656509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2862 + ... + 5431.

It is an arithmetic number, because the mean of its divisors is an integer number (1604889).

Almost surely, 2^10656505 is an apocalyptic number.

It is an amenable number.

10656505 is a deficient number, since it is larger than the sum of its proper divisors (2182607).

10656505 is an equidigital number, since it uses as much as digits as its factorization.

10656505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555.

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

The square root of 10656505 is about 3264.4302718851. The cubic root of 10656505 is about 220.0585587918.

The spelling of 10656505 in words is "ten million, six hundred fifty-six thousand, five hundred five".