11055661 has 8 divisors (see below), whose sum is σ = 11773944. Its totient is φ = 10344960.

The previous prime is 11055659. The next prime is 11055673. The reversal of 11055661 is 16655011.

It can be written as a sum of positive squares in 4 ways, for example, as 126025 + 10929636 = 355^2 + 3306^2 .

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 11055661 - 2¹ = 11055659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11050661) 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 7 ways as a sum of consecutive naturals, for example, 1281 + ... + 4873.

It is an arithmetic number, because the mean of its divisors is an integer number (1471743).

Almost surely, 2^11055661 is an apocalyptic number.

It is an amenable number.

11055661 is a deficient number, since it is larger than the sum of its proper divisors (718283).

11055661 is a wasteful number, since it uses less digits than its factorization.

11055661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 11055661 is about 3325.0054135294. The cubic root of 11055661 is about 222.7724961671.

The spelling of 11055661 in words is "eleven million, fifty-five thousand, six hundred sixty-one".