188260055 has 16 divisors (see below), whose sum is σ = 233658624. Its totient is φ = 145463040.

The previous prime is 188260049. The next prime is 188260067. The reversal of 188260055 is 550062881.

It is a happy number.

It is not a de Polignac number, because 188260055 - 2²² = 184065751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188259997 and 188260024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112787 + ... + 114443.

It is an arithmetic number, because the mean of its divisors is an integer number (14603664).

Almost surely, 2^188260055 is an apocalyptic number.

188260055 is a deficient number, since it is larger than the sum of its proper divisors (45398569).

188260055 is a wasteful number, since it uses less digits than its factorization.

188260055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 188260055 is about 13720.7891536894. The cubic root of 188260055 is about 573.1294526637.

The spelling of 188260055 in words is "one hundred eighty-eight million, two hundred sixty thousand, fifty-five".