20266055 has 8 divisors (see below), whose sum is σ = 24447744. Its totient is φ = 16127200.

The previous prime is 20266039. The next prime is 20266063. The reversal of 20266055 is 55066202.

It is a happy number.

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

It is not a de Polignac number, because 20266055 - 2⁴ = 20266039 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 9656 + ... + 11565.

It is an arithmetic number, because the mean of its divisors is an integer number (3055968).

Almost surely, 2^20266055 is an apocalyptic number.

20266055 is a deficient number, since it is larger than the sum of its proper divisors (4181689).

20266055 is a wasteful number, since it uses less digits than its factorization.

20266055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21417.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 20266055 is about 4501.7835354446. The cubic root of 20266055 is about 272.6401041457.

The spelling of 20266055 in words is "twenty million, two hundred sixty-six thousand, fifty-five".