11075561 has 8 divisors (see below), whose sum is σ = 12681984. Its totient is φ = 9475200.

The previous prime is 11075549. The next prime is 11075567. The reversal of 11075561 is 16557011.

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

It is not a de Polignac number, because 11075561 - 2⁶ = 11075497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11075561.

It is not an unprimeable number, because it can be changed into a prime (11075567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (1585248).

Almost surely, 2^11075561 is an apocalyptic number.

It is an amenable number.

11075561 is a deficient number, since it is larger than the sum of its proper divisors (1606423).

11075561 is an equidigital number, since it uses as much as digits as its factorization.

11075561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 11075561 is about 3327.9965444694. The cubic root of 11075561 is about 222.9060782735.

The spelling of 11075561 in words is "eleven million, seventy-five thousand, five hundred sixty-one".