55110559 has 4 divisors (see below), whose sum is σ = 62983504. Its totient is φ = 47237616.

The previous prime is 55110557. The next prime is 55110593. The reversal of 55110559 is 95501155.

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 55110559 - 2¹ = 55110557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55110559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55110557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3936462 + ... + 3936475.

It is an arithmetic number, because the mean of its divisors is an integer number (15745876).

Almost surely, 2^55110559 is an apocalyptic number.

55110559 is a deficient number, since it is larger than the sum of its proper divisors (7872945).

55110559 is an equidigital number, since it uses as much as digits as its factorization.

55110559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872944.

The product of its (nonzero) digits is 5625, while the sum is 31.

The square root of 55110559 is about 7423.6486312325. The cubic root of 55110559 is about 380.5498940825.

The spelling of 55110559 in words is "fifty-five million, one hundred ten thousand, five hundred fifty-nine".