20055886 has 16 divisors (see below), whose sum is σ = 32039280. Its totient is φ = 9383040.

The previous prime is 20055863. The next prime is 20055901. The reversal of 20055886 is 68855002.

It is a Harshad number since it is a multiple of its sum of digits (34).

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 7 ways as a sum of consecutive naturals, for example, 4525 + ... + 7783.

It is an arithmetic number, because the mean of its divisors is an integer number (2002455).

Almost surely, 2^20055886 is an apocalyptic number.

20055886 is a deficient number, since it is larger than the sum of its proper divisors (11983394).

20055886 is a wasteful number, since it uses less digits than its factorization.

20055886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 20055886 is about 4478.3798409693. The cubic root of 20055886 is about 271.6943564351.

The spelling of 20055886 in words is "twenty million, fifty-five thousand, eight hundred eighty-six".