53163689 has 2 divisors, whose sum is σ = 53163690. Its totient is φ = 53163688.

The previous prime is 53163683. The next prime is 53163697. The reversal of 53163689 is 98636135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30913600 + 22250089 = 5560^2 + 4717^2 .

It is a cyclic number.

It is not a de Polignac number, because 53163689 - 2⁸ = 53163433 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53163683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26581844 + 26581845.

It is an arithmetic number, because the mean of its divisors is an integer number (26581845).

Almost surely, 2^53163689 is an apocalyptic number.

It is an amenable number.

53163689 is a deficient number, since it is larger than the sum of its proper divisors (1).

53163689 is an equidigital number, since it uses as much as digits as its factorization.

53163689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 53163689 is about 7291.3434290260. The cubic root of 53163689 is about 376.0148840683.

The spelling of 53163689 in words is "fifty-three million, one hundred sixty-three thousand, six hundred eighty-nine".