524538 has 48 divisors (see below), whose sum is σ = 1362816. Its totient is φ = 142560.

The previous prime is 524521. The next prime is 524591. The reversal of 524538 is 835425.

It is a super-2 number, since 2×524538² = 550280226888, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2808 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (28392).

2⁵²⁴⁵³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 524538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681408).

524538 is an abundant number, since it is smaller than the sum of its proper divisors (838278).

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

524538 is a wasteful number, since it uses less digits than its factorization.

524538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 216 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 524538 is about 724.2499568519. The cubic root of 524538 is about 80.6477617364.

The spelling of 524538 in words is "five hundred twenty-four thousand, five hundred thirty-eight".