525361 has 2 divisors, whose sum is σ = 525362. Its totient is φ = 525360.

The previous prime is 525359. The next prime is 525373. The reversal of 525361 is 163525.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309136 + 216225 = 556^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 525361 - 2¹ = 525359 is a prime.

Together with 525359, it forms a pair of twin primes.

525361 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (525391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262680 + 262681.

It is an arithmetic number, because the mean of its divisors is an integer number (262681).

2⁵²⁵³⁶¹ is an apocalyptic number.

It is an amenable number.

525361 is a deficient number, since it is larger than the sum of its proper divisors (1).

525361 is an equidigital number, since it uses as much as digits as its factorization.

525361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 22.

The square root of 525361 is about 724.8179081673. The cubic root of 525361 is about 80.6899184692.

Adding to 525361 its reverse (163525), we get a palindrome (688886).

The spelling of 525361 in words is "five hundred twenty-five thousand, three hundred sixty-one".