20186055 has 24 divisors (see below), whose sum is σ = 37048752. Its totient is φ = 10132224.

The previous prime is 20186041. The next prime is 20186069. The reversal of 20186055 is 55068102.

It is an interprime number because it is at equal distance from previous prime (20186041) and next prime (20186069).

It is not a de Polignac number, because 20186055 - 2⁸ = 20185799 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 12429 + ... + 13958.

It is an arithmetic number, because the mean of its divisors is an integer number (1543698).

Almost surely, 2^20186055 is an apocalyptic number.

20186055 is a deficient number, since it is larger than the sum of its proper divisors (16862697).

20186055 is a wasteful number, since it uses less digits than its factorization.

20186055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26415 (or 26412 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 20186055 is about 4492.8893821237. The cubic root of 20186055 is about 272.2808832504.

The spelling of 20186055 in words is "twenty million, one hundred eighty-six thousand, fifty-five".