20504119 has 2 divisors, whose sum is σ = 20504120. Its totient is φ = 20504118.

The previous prime is 20504117. The next prime is 20504129. The reversal of 20504119 is 91140502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20504119 - 2¹ = 20504117 is a prime.

It is a super-2 number, since 2×20504119² = 840837791932322, which contains 22 as substring.

Together with 20504117, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20504119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20504117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10252059 + 10252060.

It is an arithmetic number, because the mean of its divisors is an integer number (10252060).

Almost surely, 2^20504119 is an apocalyptic number.

20504119 is a deficient number, since it is larger than the sum of its proper divisors (1).

20504119 is an equidigital number, since it uses as much as digits as its factorization.

20504119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 20504119 is about 4528.1474136781. The cubic root of 20504119 is about 273.7035127444.

The spelling of 20504119 in words is "twenty million, five hundred four thousand, one hundred nineteen".