523523 has 16 divisors (see below), whose sum is σ = 704256. Its totient is φ = 375840.

The previous prime is 523519. The next prime is 523541. The reversal of 523523 is 325325.

It is a cyclic number.

It is not a de Polignac number, because 523523 - 2² = 523519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523495 and 523504.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 523523.

It is not an unprimeable number, because it can be changed into a prime (523543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740 + ... + 1262.

It is an arithmetic number, because the mean of its divisors is an integer number (44016).

2⁵²³⁵²³ is an apocalyptic number.

523523 is a deficient number, since it is larger than the sum of its proper divisors (180733).

523523 is a wasteful number, since it uses less digits than its factorization.

523523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its digits is 900, while the sum is 20.

The square root of 523523 is about 723.5488926120. The cubic root of 523523 is about 80.5957093690.

Adding to 523523 its reverse (325325), we get a palindrome (848848).

The spelling of 523523 in words is "five hundred twenty-three thousand, five hundred twenty-three".