55330271 has 2 divisors, whose sum is σ = 55330272. Its totient is φ = 55330270.

The previous prime is 55330237. The next prime is 55330309. The reversal of 55330271 is 17203355.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55330271 is a prime.

It is a super-2 number, since 2×55330271² = 6122877777866882, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55330271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55330211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27665135 + 27665136.

It is an arithmetic number, because the mean of its divisors is an integer number (27665136).

Almost surely, 2^55330271 is an apocalyptic number.

55330271 is a deficient number, since it is larger than the sum of its proper divisors (1).

55330271 is an equidigital number, since it uses as much as digits as its factorization.

55330271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 26.

The square root of 55330271 is about 7438.4320256355. The cubic root of 55330271 is about 381.0549425568.

The spelling of 55330271 in words is "fifty-five million, three hundred thirty thousand, two hundred seventy-one".