53217163 has 2 divisors, whose sum is σ = 53217164. Its totient is φ = 53217162.

The previous prime is 53217161. The next prime is 53217167. The reversal of 53217163 is 36171235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53217163 - 2¹ = 53217161 is a prime.

Together with 53217161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53217161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26608581 + 26608582.

It is an arithmetic number, because the mean of its divisors is an integer number (26608582).

Almost surely, 2^53217163 is an apocalyptic number.

53217163 is a deficient number, since it is larger than the sum of its proper divisors (1).

53217163 is an equidigital number, since it uses as much as digits as its factorization.

53217163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 53217163 is about 7295.0094585271. The cubic root of 53217163 is about 376.1409117047.

Adding to 53217163 its reverse (36171235), we get a palindrome (89388398).

The spelling of 53217163 in words is "fifty-three million, two hundred seventeen thousand, one hundred sixty-three".