20453027 has 4 divisors (see below), whose sum is σ = 23374896. Its totient is φ = 17531160.

The previous prime is 20453009. The next prime is 20453029. The reversal of 20453027 is 72035402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20453027 - 2⁸ = 20452771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20452993 and 20453011.

It is not an unprimeable number, because it can be changed into a prime (20453029) 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, 1460924 + ... + 1460937.

It is an arithmetic number, because the mean of its divisors is an integer number (5843724).

Almost surely, 2^20453027 is an apocalyptic number.

20453027 is a deficient number, since it is larger than the sum of its proper divisors (2921869).

20453027 is an equidigital number, since it uses as much as digits as its factorization.

20453027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921868.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20453027 is about 4522.5022940845. The cubic root of 20453027 is about 273.4759862476.

Adding to 20453027 its reverse (72035402), we get a palindrome (92488429).

The spelling of 20453027 in words is "twenty million, four hundred fifty-three thousand, twenty-seven".