10506559 has 4 divisors (see below), whose sum is σ = 12007504. Its totient is φ = 9005616.

The previous prime is 10506541. The next prime is 10506569. The reversal of 10506559 is 95560501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95560501 = 151 ⋅632851.

It is a cyclic number.

It is not a de Polignac number, because 10506559 - 2¹⁵ = 10473791 is a prime.

It is a super-2 number, since 2×10506559² = 220775564040962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10506559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506569) by changing a digit.

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, 750462 + ... + 750475.

It is an arithmetic number, because the mean of its divisors is an integer number (3001876).

Almost surely, 2^10506559 is an apocalyptic number.

10506559 is a deficient number, since it is larger than the sum of its proper divisors (1500945).

10506559 is an equidigital number, since it uses as much as digits as its factorization.

10506559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500944.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 10506559 is about 3241.3822668732. The cubic root of 10506559 is about 219.0215431640.

The spelling of 10506559 in words is "ten million, five hundred six thousand, five hundred fifty-nine".