188551056 has 80 divisors (see below), whose sum is σ = 511145856. Its totient is φ = 59778048.

The previous prime is 188551031. The next prime is 188551057. The reversal of 188551056 is 650155881.

188551056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (188551057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256866 + ... + 257598.

Almost surely, 2^188551056 is an apocalyptic number.

188551056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188551056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255572928).

188551056 is an abundant number, since it is smaller than the sum of its proper divisors (322594800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

188551056 is a wasteful number, since it uses less digits than its factorization.

188551056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 39.

The square root of 188551056 is about 13731.3894417135. The cubic root of 188551056 is about 573.4246035816.

The spelling of 188551056 in words is "one hundred eighty-eight million, five hundred fifty-one thousand, fifty-six".