188803285225 has 45 divisors (see below), whose sum is σ = 244898563367. Its totient is φ = 144391072560.

The previous prime is 188803285199. The next prime is 188803285243. The reversal of 188803285225 is 522582308881.

The square root of 188803285225 is 434515.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 67969182681 + 120834102544 = 260709^2 + 347612^2 .

It is not a de Polignac number, because 188803285225 - 2⁹ = 188803284713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4017091152 + ... + 4017091198.

Almost surely, 2^188803285225 is an apocalyptic number.

188803285225 is the 434515-th square number.

188803285225 is the 217258-th centered octagonal number.

It is an amenable number.

188803285225 is a deficient number, since it is larger than the sum of its proper divisors (56095278142).

188803285225 is an frugal number, since it uses more digits than its factorization.

188803285225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 52.

The spelling of 188803285225 in words is "one hundred eighty-eight billion, eight hundred three million, two hundred eighty-five thousand, two hundred twenty-five".