230525221 has 4 divisors (see below), whose sum is σ = 230754700. Its totient is φ = 230295744.

The previous prime is 230525209. The next prime is 230525231. The reversal of 230525221 is 122525032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 140541025 + 89984196 = 11855^2 + 9486^2 .

It is a cyclic number.

It is not a de Polignac number, because 230525221 - 2¹¹ = 230523173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230525192 and 230525201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230525231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113226 + ... + 115243.

It is an arithmetic number, because the mean of its divisors is an integer number (57688675).

Almost surely, 2^230525221 is an apocalyptic number.

It is an amenable number.

230525221 is a deficient number, since it is larger than the sum of its proper divisors (229479).

230525221 is a wasteful number, since it uses less digits than its factorization.

230525221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229478.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 230525221 is about 15183.0570373690. The cubic root of 230525221 is about 613.1585883390.

The spelling of 230525221 in words is "two hundred thirty million, five hundred twenty-five thousand, two hundred twenty-one".