20054219 has 4 divisors (see below), whose sum is σ = 20129040. Its totient is φ = 19979400.

The previous prime is 20054201. The next prime is 20054227. The reversal of 20054219 is 91245002.

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 20054219 - 2²⁴ = 3277003 is a prime.

It is a super-2 number, since 2×20054219² = 804343399399922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20054194 and 20054203.

It is not an unprimeable number, because it can be changed into a prime (20054249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37007 + ... + 37544.

It is an arithmetic number, because the mean of its divisors is an integer number (5032260).

Almost surely, 2^20054219 is an apocalyptic number.

20054219 is a deficient number, since it is larger than the sum of its proper divisors (74821).

20054219 is an equidigital number, since it uses as much as digits as its factorization.

20054219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74820.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20054219 is about 4478.1937206869. The cubic root of 20054219 is about 271.6868286858.

The spelling of 20054219 in words is "twenty million, fifty-four thousand, two hundred nineteen".