55381177 has 2 divisors, whose sum is σ = 55381178. Its totient is φ = 55381176.

The previous prime is 55381163. The next prime is 55381211. The reversal of 55381177 is 77118355.

55381177 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 can be written as a sum of positive squares in only one way, i.e., 40819321 + 14561856 = 6389^2 + 3816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55381177 is a prime.

It is not a weakly prime, because it can be changed into another prime (55381127) 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, 27690588 + 27690589.

It is an arithmetic number, because the mean of its divisors is an integer number (27690589).

Almost surely, 2^55381177 is an apocalyptic number.

It is an amenable number.

55381177 is a deficient number, since it is larger than the sum of its proper divisors (1).

55381177 is an equidigital number, since it uses as much as digits as its factorization.

55381177 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 37.

The square root of 55381177 is about 7441.8530622420. The cubic root of 55381177 is about 381.1717685222.

The spelling of 55381177 in words is "fifty-five million, three hundred eighty-one thousand, one hundred seventy-seven".