53507189 has 2 divisors, whose sum is σ = 53507190. Its totient is φ = 53507188.

The previous prime is 53507171. The next prime is 53507191. The reversal of 53507189 is 98170535.

53507189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45900625 + 7606564 = 6775^2 + 2758^2 .

It is a cyclic number.

It is not a de Polignac number, because 53507189 - 2⁸ = 53506933 is a prime.

Together with 53507191, 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 (53507989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26753594 + 26753595.

It is an arithmetic number, because the mean of its divisors is an integer number (26753595).

Almost surely, 2^53507189 is an apocalyptic number.

It is an amenable number.

53507189 is a deficient number, since it is larger than the sum of its proper divisors (1).

53507189 is an equidigital number, since it uses as much as digits as its factorization.

53507189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 53507189 is about 7314.8608325791. The cubic root of 53507189 is about 376.8229790403.

The spelling of 53507189 in words is "fifty-three million, five hundred seven thousand, one hundred eighty-nine".