185225825 has 12 divisors (see below), whose sum is σ = 234568320. Its totient is φ = 145026960.

The previous prime is 185225809. The next prime is 185225861. The reversal of 185225825 is 528522581.

It is not a de Polignac number, because 185225825 - 2⁴ = 185225809 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 77645 + ... + 79994.

It is an arithmetic number, because the mean of its divisors is an integer number (19547360).

Almost surely, 2^185225825 is an apocalyptic number.

It is an amenable number.

185225825 is a deficient number, since it is larger than the sum of its proper divisors (49342495).

185225825 is a wasteful number, since it uses less digits than its factorization.

185225825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157696 (or 157691 counting only the distinct ones).

The product of its digits is 64000, while the sum is 38.

The square root of 185225825 is about 13609.7694690248. The cubic root of 185225825 is about 570.0336750393.

The spelling of 185225825 in words is "one hundred eighty-five million, two hundred twenty-five thousand, eight hundred twenty-five".