55112277 has 16 divisors (see below), whose sum is σ = 82331712. Its totient is φ = 32497920.

The previous prime is 55112273. The next prime is 55112287. The reversal of 55112277 is 77221155.

55112277 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 55112277 - 2² = 55112273 is a prime.

It is a super-2 number, since 2×55112277² = 6074726152249458, which contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55112273) 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 15 ways as a sum of consecutive naturals, for example, 21348 + ... + 23789.

It is an arithmetic number, because the mean of its divisors is an integer number (5145732).

Almost surely, 2^55112277 is an apocalyptic number.

It is an amenable number.

55112277 is a deficient number, since it is larger than the sum of its proper divisors (27219435).

55112277 is a wasteful number, since it uses less digits than its factorization.

55112277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45188.

The product of its digits is 4900, while the sum is 30.

The square root of 55112277 is about 7423.7643416262. The cubic root of 55112277 is about 380.5538484241.

The spelling of 55112277 in words is "fifty-five million, one hundred twelve thousand, two hundred seventy-seven".