232005025561 has 27 divisors (see below), whose sum is σ = 248296046079. Its totient is φ = 216751050000.

The previous prime is 232005025543. The next prime is 232005025579. The reversal of 232005025561 is 165520500232.

It is a happy number.

The square root of 232005025561 is 481669.

It is a perfect power (a square), and thus also a powerful number.

232005025561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (232005025543) and next prime (232005025579).

It can be written as a sum of positive squares in only one way, i.e., 222907681161 + 9097344400 = 472131^2 + 95380^2 .

It is not a de Polignac number, because 232005025561 - 2¹⁹ = 232004501273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232005025591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 924322686 + ... + 924322936.

Almost surely, 2^232005025561 is an apocalyptic number.

232005025561 is the 481669-th square number.

232005025561 is the 240835-th centered octagonal number.

It is an amenable number.

232005025561 is a deficient number, since it is larger than the sum of its proper divisors (16291020518).

232005025561 is an frugal number, since it uses more digits than its factorization.

232005025561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 232005025561 its reverse (165520500232), we get a palindrome (397525525793).

The spelling of 232005025561 in words is "two hundred thirty-two billion, five million, twenty-five thousand, five hundred sixty-one".