11005061 has 4 divisors (see below), whose sum is σ = 11114124. Its totient is φ = 10896000.

The previous prime is 11005051. The next prime is 11005067. The reversal of 11005061 is 16050011.

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 9728161 + 1276900 = 3119^2 + 1130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11005061 is a prime.

It is a super-2 number, since 2×11005061² = 242222735227442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11005067) 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 3 ways as a sum of consecutive naturals, for example, 54380 + ... + 54581.

It is an arithmetic number, because the mean of its divisors is an integer number (2778531).

Almost surely, 2^11005061 is an apocalyptic number.

It is an amenable number.

11005061 is a deficient number, since it is larger than the sum of its proper divisors (109063).

11005061 is a wasteful number, since it uses less digits than its factorization.

11005061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109062.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 11005061 is about 3317.3876770736. The cubic root of 11005061 is about 222.4321115948.

Adding to 11005061 its reverse (16050011), we get a palindrome (27055072).

The spelling of 11005061 in words is "eleven million, five thousand, sixty-one".