523529 has 6 divisors (see below), whose sum is σ = 541086. Its totient is φ = 506240.

The previous prime is 523519. The next prime is 523541. The reversal of 523529 is 925325.

It can be written as a sum of positive squares in 3 ways, for example, as 139129 + 384400 = 373^2 + 620^2 .

It is not a de Polignac number, because 523529 - 2¹² = 519433 is a prime.

It is a super-2 number, since 2×523529² = 548165227682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 523498 and 523507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523519) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4577 + ... + 4689.

It is an arithmetic number, because the mean of its divisors is an integer number (90181).

2⁵²³⁵²⁹ is an apocalyptic number.

It is an amenable number.

523529 is a deficient number, since it is larger than the sum of its proper divisors (17557).

523529 is an equidigital number, since it uses as much as digits as its factorization.

523529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 154 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 523529 is about 723.5530388299. The cubic root of 523529 is about 80.5960172653.

The spelling of 523529 in words is "five hundred twenty-three thousand, five hundred twenty-nine".