189521325028225 has 24 divisors (see below), whose sum is σ = 240795359842752. Its totient is φ = 147891766209600.

The previous prime is 189521325028223. The next prime is 189521325028247. The reversal of 189521325028225 is 522820523125981.

189521325028225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189521325028225 - 2¹ = 189521325028223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189521325028223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117841186 + ... + 119438635.

It is an arithmetic number, because the mean of its divisors is an integer number (10033139993448).

Almost surely, 2^{189521325028225} is an apocalyptic number.

It is an amenable number.

189521325028225 is a deficient number, since it is larger than the sum of its proper divisors (51274034814527).

189521325028225 is a wasteful number, since it uses less digits than its factorization.

189521325028225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237280617 (or 237280612 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 55.

The spelling of 189521325028225 in words is "one hundred eighty-nine trillion, five hundred twenty-one billion, three hundred twenty-five million, twenty-eight thousand, two hundred twenty-five".