20025043 has 4 divisors (see below), whose sum is σ = 20402928. Its totient is φ = 19647160.

The previous prime is 20025041. The next prime is 20025059. The reversal of 20025043 is 34052002.

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 20025043 - 2¹ = 20025041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20025041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 188863 + ... + 188968.

It is an arithmetic number, because the mean of its divisors is an integer number (5100732).

Almost surely, 2^20025043 is an apocalyptic number.

20025043 is a deficient number, since it is larger than the sum of its proper divisors (377885).

20025043 is an equidigital number, since it uses as much as digits as its factorization.

20025043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377884.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20025043 is about 4474.9349715946. The cubic root of 20025043 is about 271.5550096721. Note that the first 3 decimals are identical.

Adding to 20025043 its reverse (34052002), we get a palindrome (54077045).

The spelling of 20025043 in words is "twenty million, twenty-five thousand, forty-three".