20052419 has 2 divisors, whose sum is σ = 20052420. Its totient is φ = 20052418.

The previous prime is 20052413. The next prime is 20052421. The reversal of 20052419 is 91425002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20052419 is a prime.

It is a super-2 number, since 2×20052419² = 804199015503122, which contains 22 as substring.

Together with 20052421, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20052394 and 20052403.

It is not a weakly prime, because it can be changed into another prime (20052413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10026209 + 10026210.

It is an arithmetic number, because the mean of its divisors is an integer number (10026210).

Almost surely, 2^20052419 is an apocalyptic number.

20052419 is a deficient number, since it is larger than the sum of its proper divisors (1).

20052419 is an equidigital number, since it uses as much as digits as its factorization.

20052419 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 20052419 is about 4477.9927422898. The cubic root of 20052419 is about 271.6786998739.

The spelling of 20052419 in words is "twenty million, fifty-two thousand, four hundred nineteen".