523536 has 40 divisors (see below), whose sum is σ = 1458240. Its totient is φ = 160896.

The previous prime is 523519. The next prime is 523541. The reversal of 523536 is 635325.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

523536 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205 + ... + 1043.

It is an arithmetic number, because the mean of its divisors is an integer number (36456).

2⁵²³⁵³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (729120).

523536 is an abundant number, since it is smaller than the sum of its proper divisors (934704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523536 is a wasteful number, since it uses less digits than its factorization.

523536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 857 counting only the distinct ones).

The product of its digits is 2700, while the sum is 24.

The square root of 523536 is about 723.5578760542. The cubic root of 523536 is about 80.5963764747.

The spelling of 523536 in words is "five hundred twenty-three thousand, five hundred thirty-six".