53000191 has 2 divisors, whose sum is σ = 53000192. Its totient is φ = 53000190.

The previous prime is 53000183. The next prime is 53000201. The reversal of 53000191 is 19100035.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53000191 - 2³ = 53000183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53000141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26500095 + 26500096.

It is an arithmetic number, because the mean of its divisors is an integer number (26500096).

Almost surely, 2^53000191 is an apocalyptic number.

53000191 is a deficient number, since it is larger than the sum of its proper divisors (1).

53000191 is an equidigital number, since it uses as much as digits as its factorization.

53000191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 53000191 is about 7280.1230072026. The cubic root of 53000191 is about 375.6290266483.

The spelling of 53000191 in words is "fifty-three million, one hundred ninety-one", and thus it is an aban number.