525504361 has 2 divisors, whose sum is σ = 525504362. Its totient is φ = 525504360.

The previous prime is 525504349. The next prime is 525504367. The reversal of 525504361 is 163405525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 264875625 + 260628736 = 16275^2 + 16144^2 .

It is a cyclic number.

It is not a de Polignac number, because 525504361 - 2¹⁹ = 524980073 is a prime.

It is not a weakly prime, because it can be changed into another prime (525504367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262752180 + 262752181.

It is an arithmetic number, because the mean of its divisors is an integer number (262752181).

Almost surely, 2^525504361 is an apocalyptic number.

It is an amenable number.

525504361 is a deficient number, since it is larger than the sum of its proper divisors (1).

525504361 is an equidigital number, since it uses as much as digits as its factorization.

525504361 is an odious number, because the sum of its binary digits is odd.

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

The square root of 525504361 is about 22923.8818920357. The cubic root of 525504361 is about 806.9725738179.

Adding to 525504361 its reverse (163405525), we get a palindrome (688909886).

The spelling of 525504361 in words is "five hundred twenty-five million, five hundred four thousand, three hundred sixty-one".