11056551 has 8 divisors (see below), whose sum is σ = 16082304. Its totient is φ = 6700920.

The previous prime is 11056523. The next prime is 11056561. The reversal of 11056551 is 15565011.

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

It is not a de Polignac number, because 11056551 - 2⁹ = 11056039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056501) 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, 167491 + ... + 167556.

It is an arithmetic number, because the mean of its divisors is an integer number (2010288).

Almost surely, 2^11056551 is an apocalyptic number.

11056551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11056551 is a deficient number, since it is larger than the sum of its proper divisors (5025753).

11056551 is a wasteful number, since it uses less digits than its factorization.

11056551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335061.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 11056551 is about 3325.1392452046. The cubic root of 11056551 is about 222.7784738649.

The spelling of 11056551 in words is "eleven million, fifty-six thousand, five hundred fifty-one".