11204556 has 48 divisors (see below), whose sum is σ = 29514240. Its totient is φ = 3277120.

The previous prime is 11204549. The next prime is 11204587. The reversal of 11204556 is 65540211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2365 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (614880).

Almost surely, 2^11204556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11204556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14757120).

11204556 is an abundant number, since it is smaller than the sum of its proper divisors (18309684).

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

11204556 is a wasteful number, since it uses less digits than its factorization.

11204556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 11204556 is about 3347.3207196204. The cubic root of 11204556 is about 223.7681220822.

Adding to 11204556 its reverse (65540211), we get a palindrome (76744767).

It can be divided in two parts, 112045 and 56, that added together give a triangular number (112101 = T₄₇₃).

The spelling of 11204556 in words is "eleven million, two hundred four thousand, five hundred fifty-six".