53497189 has 2 divisors, whose sum is σ = 53497190. Its totient is φ = 53497188.

The previous prime is 53497187. The next prime is 53497207. The reversal of 53497189 is 98179435.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52446564 + 1050625 = 7242^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 53497189 - 2¹ = 53497187 is a prime.

Together with 53497187, 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 (53497187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26748594 + 26748595.

It is an arithmetic number, because the mean of its divisors is an integer number (26748595).

Almost surely, 2^53497189 is an apocalyptic number.

It is an amenable number.

53497189 is a deficient number, since it is larger than the sum of its proper divisors (1).

53497189 is an equidigital number, since it uses as much as digits as its factorization.

53497189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 46.

The square root of 53497189 is about 7314.1772606357. The cubic root of 53497189 is about 376.7995026649.

The spelling of 53497189 in words is "fifty-three million, four hundred ninety-seven thousand, one hundred eighty-nine".