189256225 has 12 divisors (see below), whose sum is σ = 234945280. Its totient is φ = 151232400.

The previous prime is 189256219. The next prime is 189256261. The reversal of 189256225 is 522652981.

It is a de Polignac number, because none of the positive numbers 2^k-189256225 is a prime.

189256225 is a Rhonda number in base 10.

Its product of digits (86400) is a multiple of the sum of its prime factors (8640).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20956 + ... + 28594.

Almost surely, 2^189256225 is an apocalyptic number.

It is an amenable number.

189256225 is a deficient number, since it is larger than the sum of its proper divisors (45689055).

189256225 is an equidigital number, since it uses as much as digits as its factorization.

189256225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8640 (or 8635 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 189256225 is about 13757.0427418105. The cubic root of 189256225 is about 574.1385714806.

The spelling of 189256225 in words is "one hundred eighty-nine million, two hundred fifty-six thousand, two hundred twenty-five".