55182271 has 2 divisors, whose sum is σ = 55182272. Its totient is φ = 55182270.

The previous prime is 55182241. The next prime is 55182317. The reversal of 55182271 is 17228155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55182271 - 2¹⁹ = 54657983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55182241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27591135 + 27591136.

It is an arithmetic number, because the mean of its divisors is an integer number (27591136).

Almost surely, 2^55182271 is an apocalyptic number.

55182271 is a deficient number, since it is larger than the sum of its proper divisors (1).

55182271 is an equidigital number, since it uses as much as digits as its factorization.

55182271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5600, while the sum is 31.

The square root of 55182271 is about 7428.4770309936. The cubic root of 55182271 is about 380.7148846403.

The spelling of 55182271 in words is "fifty-five million, one hundred eighty-two thousand, two hundred seventy-one".