55788111 has 6 divisors (see below), whose sum is σ = 80582840. Its totient is φ = 37192068.

The previous prime is 55788059. The next prime is 55788121. The reversal of 55788111 is 11188755.

It is a happy number.

55788111 is a `hidden beast` number, since 5 + 578 + 81 + 1 + 1 = 666.

55788111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55788111 - 2¹⁰ = 55787087 is a prime.

It is a super-2 number, since 2×55788111² = 6224626657896642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55788121) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3099331 + ... + 3099348.

Almost surely, 2^55788111 is an apocalyptic number.

55788111 is a deficient number, since it is larger than the sum of its proper divisors (24794729).

55788111 is a wasteful number, since it uses less digits than its factorization.

55788111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6198685 (or 6198682 counting only the distinct ones).

The product of its digits is 11200, while the sum is 36.

The square root of 55788111 is about 7469.1439268500. The cubic root of 55788111 is about 382.1030920645.

It can be divided in two parts, 5578 and 8111, that added together give a square (13689 = 117²).

The spelling of 55788111 in words is "fifty-five million, seven hundred eighty-eight thousand, one hundred eleven".