55380571 has 2 divisors, whose sum is σ = 55380572. Its totient is φ = 55380570.

The previous prime is 55380569. The next prime is 55380607. The reversal of 55380571 is 17508355.

55380571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55380571 - 2¹ = 55380569 is a prime.

Together with 55380569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55380511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27690285 + 27690286.

It is an arithmetic number, because the mean of its divisors is an integer number (27690286).

Almost surely, 2^55380571 is an apocalyptic number.

55380571 is a deficient number, since it is larger than the sum of its proper divisors (1).

55380571 is an equidigital number, since it uses as much as digits as its factorization.

55380571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 55380571 is about 7441.8123464651. The cubic root of 55380571 is about 381.1703782127.

The spelling of 55380571 in words is "fifty-five million, three hundred eighty thousand, five hundred seventy-one".