55211164 has 6 divisors (see below), whose sum is σ = 96619544. Its totient is φ = 27605580.

The previous prime is 55211153. The next prime is 55211173. The reversal of 55211164 is 46111255.

It is a happy number.

55211164 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 as a sum of consecutive naturals, namely, 6901392 + ... + 6901399.

Almost surely, 2^55211164 is an apocalyptic number.

It is an amenable number.

55211164 is a deficient number, since it is larger than the sum of its proper divisors (41408380).

55211164 is a wasteful number, since it uses less digits than its factorization.

55211164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13802795 (or 13802793 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 55211164 is about 7430.4215223633. The cubic root of 55211164 is about 380.7813194794.

Subtracting from 55211164 its reverse (46111255), we obtain a palindrome (9099909).

The spelling of 55211164 in words is "fifty-five million, two hundred eleven thousand, one hundred sixty-four".