20025419 has 2 divisors, whose sum is σ = 20025420. Its totient is φ = 20025418.

The previous prime is 20025409. The next prime is 20025443. The reversal of 20025419 is 91452002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20025419 - 2⁴ = 20025403 is a prime.

It is a super-2 number, since 2×20025419² = 802034812251122, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p_1272119 and since 20025419 and 1272119 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 20025394 and 20025403.

It is not a weakly prime, because it can be changed into another prime (20025409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012709 + 10012710.

It is an arithmetic number, because the mean of its divisors is an integer number (10012710).

Almost surely, 2^20025419 is an apocalyptic number.

20025419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20025419 is an equidigital number, since it uses as much as digits as its factorization.

20025419 is an evil number, because the sum of its binary digits is even.

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

The square root of 20025419 is about 4474.9769831810. The cubic root of 20025419 is about 271.5567092780.

The spelling of 20025419 in words is "twenty million, twenty-five thousand, four hundred nineteen".