55171366 has 16 divisors (see below), whose sum is σ = 85456224. Its totient is φ = 26694144.

The previous prime is 55171349. The next prime is 55171381. The reversal of 55171366 is 66317155.

55171366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 12351 + ... + 16213.

It is an arithmetic number, because the mean of its divisors is an integer number (5341014).

Almost surely, 2^55171366 is an apocalyptic number.

55171366 is a deficient number, since it is larger than the sum of its proper divisors (30284858).

55171366 is a wasteful number, since it uses less digits than its factorization.

55171366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4095.

The product of its digits is 18900, while the sum is 34.

The square root of 55171366 is about 7427.7429950154. The cubic root of 55171366 is about 380.6898043065.

It can be divided in two parts, 551 and 71366, that added together give a palindrome (71917).

The spelling of 55171366 in words is "fifty-five million, one hundred seventy-one thousand, three hundred sixty-six".