525524 has 6 divisors (see below), whose sum is σ = 919674. Its totient is φ = 262760.

The previous prime is 525517. The next prime is 525529. The reversal of 525524 is 425525.

It can be written as a sum of positive squares in only one way, i.e., 515524 + 10000 = 718^2 + 100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 525524.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 525524.

It is not an unprimeable number, because it can be changed into a prime (525529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65687 + ... + 65694.

It is an arithmetic number, because the mean of its divisors is an integer number (153279).

2⁵²⁵⁵²⁴ is an apocalyptic number.

It is an amenable number.

525524 is a deficient number, since it is larger than the sum of its proper divisors (394150).

525524 is a wasteful number, since it uses less digits than its factorization.

525524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131385 (or 131383 counting only the distinct ones).

The product of its digits is 2000, while the sum is 23.

The square root of 525524 is about 724.9303414812. The cubic root of 525524 is about 80.6982626343.

Subtracting from 525524 its reverse (425525), we obtain a palindrome (99999).

The spelling of 525524 in words is "five hundred twenty-five thousand, five hundred twenty-four".