188052505 has 4 divisors (see below), whose sum is σ = 225663012. Its totient is φ = 150442000.

The previous prime is 188052497. The next prime is 188052511. The reversal of 188052505 is 505250881.

It is a happy number.

188052505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505250881 = 1571 ⋅321611.

It can be written as a sum of positive squares in 2 ways, for example, as 122943744 + 65108761 = 11088^2 + 8069^2 .

It is not a de Polignac number, because 188052505 - 2³ = 188052497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18805246 + ... + 18805255.

It is an arithmetic number, because the mean of its divisors is an integer number (56415753).

Almost surely, 2^188052505 is an apocalyptic number.

It is an amenable number.

188052505 is a deficient number, since it is larger than the sum of its proper divisors (37610507).

188052505 is an equidigital number, since it uses as much as digits as its factorization.

188052505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37610506.

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 188052505 is about 13713.2237274829. The cubic root of 188052505 is about 572.9187569525.

The spelling of 188052505 in words is "one hundred eighty-eight million, fifty-two thousand, five hundred five".