20327055 has 64 divisors (see below), whose sum is σ = 40919040. Its totient is φ = 8401536.

The previous prime is 20327039. The next prime is 20327117. The reversal of 20327055 is 55072302.

It is not a de Polignac number, because 20327055 - 2⁴ = 20327039 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 (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45664 + ... + 46106.

It is an arithmetic number, because the mean of its divisors is an integer number (639360).

Almost surely, 2^20327055 is an apocalyptic number.

20327055 is an abundant number, since it is smaller than the sum of its proper divisors (20591985).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20327055 is a wasteful number, since it uses less digits than its factorization.

20327055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 20327055 is about 4508.5535374441. The cubic root of 20327055 is about 272.9133753528.

Adding to 20327055 its reverse (55072302), we get a palindrome (75399357).

The spelling of 20327055 in words is "twenty million, three hundred twenty-seven thousand, fifty-five".