11820056 has 8 divisors (see below), whose sum is σ = 22162620. Its totient is φ = 5910024.

The previous prime is 11820047. The next prime is 11820079. The reversal of 11820056 is 65002811.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 738746 + ... + 738761.

Almost surely, 2^11820056 is an apocalyptic number.

It is an amenable number.

11820056 is a deficient number, since it is larger than the sum of its proper divisors (10342564).

11820056 is a wasteful number, since it uses less digits than its factorization.

11820056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477513 (or 1477509 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 11820056 is about 3438.0308317408. The cubic root of 11820056 is about 227.7927222574.

Adding to 11820056 its reverse (65002811), we get a palindrome (76822867).

The spelling of 11820056 in words is "eleven million, eight hundred twenty thousand, fifty-six".