53563219189 has 2 divisors, whose sum is σ = 53563219190. Its totient is φ = 53563219188.

The previous prime is 53563219187. The next prime is 53563219247. The reversal of 53563219189 is 98191236535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44845262289 + 8717956900 = 211767^2 + 93370^2 .

It is a cyclic number.

It is not a de Polignac number, because 53563219189 - 2¹ = 53563219187 is a prime.

Together with 53563219187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53563219187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26781609594 + 26781609595.

It is an arithmetic number, because the mean of its divisors is an integer number (26781609595).

Almost surely, 2^53563219189 is an apocalyptic number.

It is an amenable number.

53563219189 is a deficient number, since it is larger than the sum of its proper divisors (1).

53563219189 is an equidigital number, since it uses as much as digits as its factorization.

53563219189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1749600, while the sum is 52.

The spelling of 53563219189 in words is "fifty-three billion, five hundred sixty-three million, two hundred nineteen thousand, one hundred eighty-nine".