20236055 has 16 divisors (see below), whose sum is σ = 28710720. Its totient is φ = 13396992.

The previous prime is 20236049. The next prime is 20236061. The reversal of 20236055 is 55063202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20236049) and next prime (20236061).

It is not a de Polignac number, because 20236055 - 2¹⁰ = 20235031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20236055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8954 + ... + 10983.

It is an arithmetic number, because the mean of its divisors is an integer number (1794420).

Almost surely, 2^20236055 is an apocalyptic number.

20236055 is a deficient number, since it is larger than the sum of its proper divisors (8474665).

20236055 is a wasteful number, since it uses less digits than its factorization.

20236055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19978.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 20236055 is about 4498.4502887105. The cubic root of 20236055 is about 272.5055072815.

Adding to 20236055 its reverse (55063202), we get a palindrome (75299257).

The spelling of 20236055 in words is "twenty million, two hundred thirty-six thousand, fifty-five".