11057556 has 12 divisors (see below), whose sum is σ = 25800992. Its totient is φ = 3685848.

The previous prime is 11057539. The next prime is 11057567. The reversal of 11057556 is 65575011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 460720 + ... + 460743.

Almost surely, 2^11057556 is an apocalyptic number.

It is an amenable number.

11057556 is an abundant number, since it is smaller than the sum of its proper divisors (14743436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11057556 is a wasteful number, since it uses less digits than its factorization.

11057556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921470 (or 921468 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 30.

The square root of 11057556 is about 3325.2903632615. The cubic root of 11057556 is about 222.7852235762.

The spelling of 11057556 in words is "eleven million, fifty-seven thousand, five hundred fifty-six".