11055621 has 8 divisors (see below), whose sum is σ = 14758560. Its totient is φ = 7361552.

The previous prime is 11055599. The next prime is 11055647. The reversal of 11055621 is 12655011.

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

It is a cyclic number.

It is not a de Polignac number, because 11055621 - 2⁶ = 11055557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11054621) 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, 1666 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (1844820).

Almost surely, 2^11055621 is an apocalyptic number.

It is an amenable number.

11055621 is a deficient number, since it is larger than the sum of its proper divisors (3702939).

11055621 is a wasteful number, since it uses less digits than its factorization.

11055621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 11055621 is about 3324.9993984962. Note that the first 3 decimals coincide. The cubic root of 11055621 is about 222.7722274990.

The spelling of 11055621 in words is "eleven million, fifty-five thousand, six hundred twenty-one".