525523 has 4 divisors (see below), whose sum is σ = 529200. Its totient is φ = 521848.

The previous prime is 525517. The next prime is 525529. The reversal of 525523 is 325525.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (525517) and next prime (525529).

It is a cyclic number.

It is not a de Polignac number, because 525523 - 2⁵ = 525491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525494 and 525503.

It is not an unprimeable number, because it can be changed into a prime (525529) 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 3 ways as a sum of consecutive naturals, for example, 1615 + ... + 1912.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

2⁵²⁵⁵²³ is an apocalyptic number.

525523 is a deficient number, since it is larger than the sum of its proper divisors (3677).

525523 is a wasteful number, since it uses less digits than its factorization.

525523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676.

The product of its digits is 1500, while the sum is 22.

The square root of 525523 is about 724.9296517594. The cubic root of 525523 is about 80.6982114483.

The spelling of 525523 in words is "five hundred twenty-five thousand, five hundred twenty-three".