525172 has 6 divisors (see below), whose sum is σ = 919058. Its totient is φ = 262584.

The previous prime is 525167. The next prime is 525191. The reversal of 525172 is 271525.

It can be written as a sum of positive squares in only one way, i.e., 509796 + 15376 = 714^2 + 124^2 .

It is a congruent number.

It is an unprimeable number.

525172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 65643 + ... + 65650.

2⁵²⁵¹⁷² is an apocalyptic number.

It is an amenable number.

525172 is a deficient number, since it is larger than the sum of its proper divisors (393886).

525172 is a wasteful number, since it uses less digits than its factorization.

525172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131297 (or 131295 counting only the distinct ones).

The product of its digits is 700, while the sum is 22.

The square root of 525172 is about 724.6875188659. The cubic root of 525172 is about 80.6802411719.

Adding to 525172 its reverse (271525), we get a palindrome (796697).

The spelling of 525172 in words is "five hundred twenty-five thousand, one hundred seventy-two".