55110565 has 4 divisors (see below), whose sum is σ = 66132684. Its totient is φ = 44088448.

The previous prime is 55110557. The next prime is 55110593. The reversal of 55110565 is 56501155.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11840481 + 43270084 = 3441^2 + 6578^2 .

It is a cyclic number.

It is not a de Polignac number, because 55110565 - 2³ = 55110557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5511052 + ... + 5511061.

It is an arithmetic number, because the mean of its divisors is an integer number (16533171).

Almost surely, 2^55110565 is an apocalyptic number.

It is an amenable number.

55110565 is a deficient number, since it is larger than the sum of its proper divisors (11022119).

55110565 is a wasteful number, since it uses less digits than its factorization.

55110565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11022118.

The product of its (nonzero) digits is 3750, while the sum is 28.

The square root of 55110565 is about 7423.6490353464. The cubic root of 55110565 is about 380.5499078929.

The spelling of 55110565 in words is "fifty-five million, one hundred ten thousand, five hundred sixty-five".