188925025 has 9 divisors (see below), whose sum is σ = 234352281. Its totient is φ = 151085040.

The previous prime is 188925001. The next prime is 188925031. The reversal of 188925025 is 520529881.

The square root of 188925025 is 13745.

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 55845729 + 133079296 = 7473^2 + 11536^2 .

It is not a de Polignac number, because 188925025 - 2⁵ = 188924993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 67351 + ... + 70099.

Almost surely, 2^188925025 is an apocalyptic number.

188925025 is the 13745-th square number.

188925025 is the 6873-rd centered octagonal number.

It is an amenable number.

188925025 is a deficient number, since it is larger than the sum of its proper divisors (45427256).

188925025 is an frugal number, since it uses more digits than its factorization.

188925025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The cubic root of 188925025 is about 573.8034601309.

Multiplying 188925025 by its product of nonzero digits (57600), we get a square (10882081440000 = 3298800²).

The spelling of 188925025 in words is "one hundred eighty-eight million, nine hundred twenty-five thousand, twenty-five".