20255827 has 4 divisors (see below), whose sum is σ = 20265976. Its totient is φ = 20245680.

The previous prime is 20255813. The next prime is 20255839. The reversal of 20255827 is 72855202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20255827 - 2¹⁵ = 20223059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20255897) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 978 + ... + 6439.

It is an arithmetic number, because the mean of its divisors is an integer number (5066494).

Almost surely, 2^20255827 is an apocalyptic number.

20255827 is a deficient number, since it is larger than the sum of its proper divisors (10149).

20255827 is an equidigital number, since it uses as much as digits as its factorization.

20255827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 20255827 is about 4500.6473978751. The cubic root of 20255827 is about 272.5942305205.

The spelling of 20255827 in words is "twenty million, two hundred fifty-five thousand, eight hundred twenty-seven".