188650225 has 27 divisors (see below), whose sum is σ = 243403041. Its totient is φ = 145041600.

The previous prime is 188650219. The next prime is 188650229. The reversal of 188650225 is 522056881.

The square root of 188650225 is 13735.

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

It can be written as a sum of positive squares in 4 ways, for example, as 79405921 + 109244304 = 8911^2 + 10452^2 .

It is not a de Polignac number, because 188650225 - 2¹⁹ = 188125937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188650229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2815642 + ... + 2815708.

Almost surely, 2^188650225 is an apocalyptic number.

188650225 is the 13735-th square number.

188650225 is the 6868-th centered octagonal number.

It is an amenable number.

188650225 is a deficient number, since it is larger than the sum of its proper divisors (54752816).

188650225 is an frugal number, since it uses more digits than its factorization.

188650225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The cubic root of 188650225 is about 573.5251174318.

The spelling of 188650225 in words is "one hundred eighty-eight million, six hundred fifty thousand, two hundred twenty-five".