53105189 has 2 divisors, whose sum is σ = 53105190. Its totient is φ = 53105188.

The previous prime is 53105179. The next prime is 53105191. The reversal of 53105189 is 98150135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52085089 + 1020100 = 7217^2 + 1010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53105189 is a prime.

It is a super-2 number, since 2×53105189² = 5640322197451442, which contains 22 as substring.

Together with 53105191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53105179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26552594 + 26552595.

It is an arithmetic number, because the mean of its divisors is an integer number (26552595).

Almost surely, 2^53105189 is an apocalyptic number.

It is an amenable number.

53105189 is a deficient number, since it is larger than the sum of its proper divisors (1).

53105189 is an equidigital number, since it uses as much as digits as its factorization.

53105189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 53105189 is about 7287.3307184455. The cubic root of 53105189 is about 375.8769143102.

The spelling of 53105189 in words is "fifty-three million, one hundred five thousand, one hundred eighty-nine".