55110215 has 4 divisors (see below), whose sum is σ = 66132264. Its totient is φ = 44088168.

The previous prime is 55110199. The next prime is 55110221. The reversal of 55110215 is 51201155.

It is a happy number.

55110215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55110215 - 2⁴ = 55110199 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 5511017 + ... + 5511026.

It is an arithmetic number, because the mean of its divisors is an integer number (16533066).

Almost surely, 2^55110215 is an apocalyptic number.

55110215 is a deficient number, since it is larger than the sum of its proper divisors (11022049).

55110215 is a wasteful number, since it uses less digits than its factorization.

55110215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11022048.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 55110215 is about 7423.6254619963. The cubic root of 55110215 is about 380.5491022836.

The spelling of 55110215 in words is "fifty-five million, one hundred ten thousand, two hundred fifteen".