53271247 has 2 divisors, whose sum is σ = 53271248. Its totient is φ = 53271246.

The previous prime is 53271233. The next prime is 53271287. The reversal of 53271247 is 74217235.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53271247 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 (53271227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26635623 + 26635624.

It is an arithmetic number, because the mean of its divisors is an integer number (26635624).

Almost surely, 2^53271247 is an apocalyptic number.

53271247 is a deficient number, since it is larger than the sum of its proper divisors (1).

53271247 is an equidigital number, since it uses as much as digits as its factorization.

53271247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 53271247 is about 7298.7154349241. The cubic root of 53271247 is about 376.2682911458.

The spelling of 53271247 in words is "fifty-three million, two hundred seventy-one thousand, two hundred forty-seven".