525230161 has 2 divisors, whose sum is σ = 525230162. Its totient is φ = 525230160.

The previous prime is 525230149. The next prime is 525230203. The reversal of 525230161 is 161032525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523540161 + 1690000 = 22881^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 525230161 - 2⁷ = 525230033 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (525230261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262615080 + 262615081.

It is an arithmetic number, because the mean of its divisors is an integer number (262615081).

Almost surely, 2^525230161 is an apocalyptic number.

It is an amenable number.

525230161 is a deficient number, since it is larger than the sum of its proper divisors (1).

525230161 is an equidigital number, since it uses as much as digits as its factorization.

525230161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 525230161 is about 22917.9004492122. The cubic root of 525230161 is about 806.8321941542.

Adding to 525230161 its reverse (161032525), we get a palindrome (686262686).

The spelling of 525230161 in words is "five hundred twenty-five million, two hundred thirty thousand, one hundred sixty-one".