188055057 has 4 divisors (see below), whose sum is σ = 250740080. Its totient is φ = 125370036.

The previous prime is 188055047. The next prime is 188055059. The reversal of 188055057 is 750550881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 188055057 - 2⁷ = 188054929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188055059) 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, 31342507 + ... + 31342512.

It is an arithmetic number, because the mean of its divisors is an integer number (62685020).

Almost surely, 2^188055057 is an apocalyptic number.

It is an amenable number.

188055057 is a deficient number, since it is larger than the sum of its proper divisors (62685023).

188055057 is an equidigital number, since it uses as much as digits as its factorization.

188055057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62685022.

The product of its (nonzero) digits is 56000, while the sum is 39.

The square root of 188055057 is about 13713.3167760393. The cubic root of 188055057 is about 572.9213485728.

The spelling of 188055057 in words is "one hundred eighty-eight million, fifty-five thousand, fifty-seven".