525161 has 16 divisors (see below), whose sum is σ = 672000. Its totient is φ = 399168.

The previous prime is 525157. The next prime is 525163. The reversal of 525161 is 161525.

It is not a de Polignac number, because 525161 - 2² = 525157 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525161.

It is not an unprimeable number, because it can be changed into a prime (525163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2540 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (42000).

2⁵²⁵¹⁶¹ is an apocalyptic number.

It is an amenable number.

525161 is a deficient number, since it is larger than the sum of its proper divisors (146839).

525161 is a wasteful number, since it uses less digits than its factorization.

525161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248.

The product of its digits is 300, while the sum is 20.

The square root of 525161 is about 724.6799293481. The cubic root of 525161 is about 80.6796778715.

Adding to 525161 its reverse (161525), we get a palindrome (686686).

It can be divided in two parts, 525 and 161, that added together give a palindrome (686).

The spelling of 525161 in words is "five hundred twenty-five thousand, one hundred sixty-one".