20519063 has 2 divisors, whose sum is σ = 20519064. Its totient is φ = 20519062.

The previous prime is 20519047. The next prime is 20519077. The reversal of 20519063 is 36091502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20519063 - 2⁴ = 20519047 is a prime.

It is equal to p_1301399 and since 20519063 and 1301399 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20519033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10259531 + 10259532.

It is an arithmetic number, because the mean of its divisors is an integer number (10259532).

Almost surely, 2^20519063 is an apocalyptic number.

20519063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20519063 is an equidigital number, since it uses as much as digits as its factorization.

20519063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 20519063 is about 4529.7972360802. The cubic root of 20519063 is about 273.7699909645.

The spelling of 20519063 in words is "twenty million, five hundred nineteen thousand, sixty-three".