53617189 has 2 divisors, whose sum is σ = 53617190. Its totient is φ = 53617188.

The previous prime is 53617169. The next prime is 53617199. The reversal of 53617189 is 98171635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43164900 + 10452289 = 6570^2 + 3233^2 .

It is a cyclic number.

It is not a de Polignac number, because 53617189 - 2¹¹ = 53615141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53617129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26808594 + 26808595.

It is an arithmetic number, because the mean of its divisors is an integer number (26808595).

Almost surely, 2^53617189 is an apocalyptic number.

It is an amenable number.

53617189 is a deficient number, since it is larger than the sum of its proper divisors (1).

53617189 is an equidigital number, since it uses as much as digits as its factorization.

53617189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 40.

The square root of 53617189 is about 7322.3759122296. The cubic root of 53617189 is about 377.0810263309.

The spelling of 53617189 in words is "fifty-three million, six hundred seventeen thousand, one hundred eighty-nine".