53111171 has 2 divisors, whose sum is σ = 53111172. Its totient is φ = 53111170.

The previous prime is 53111161. The next prime is 53111189. The reversal of 53111171 is 17111135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53111171 - 2¹⁰ = 53110147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (53111161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26555585 + 26555586.

It is an arithmetic number, because the mean of its divisors is an integer number (26555586).

Almost surely, 2^53111171 is an apocalyptic number.

53111171 is a deficient number, since it is larger than the sum of its proper divisors (1).

53111171 is an equidigital number, since it uses as much as digits as its factorization.

53111171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105, while the sum is 20.

The square root of 53111171 is about 7287.7411452384. The cubic root of 53111171 is about 375.8910272517.

The spelling of 53111171 in words is "fifty-three million, one hundred eleven thousand, one hundred seventy-one".