526530 has 16 divisors (see below), whose sum is σ = 1263744. Its totient is φ = 140400.

The previous prime is 526511. The next prime is 526531. The reversal of 526530 is 35625.

It is a Curzon number.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 526497 and 526506.

It is not an unprimeable number, because it can be changed into a prime (526531) by changing a digit.

526530 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 (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8746 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (78984).

2⁵²⁶⁵³⁰ is an apocalyptic number.

526530 is an abundant number, since it is smaller than the sum of its proper divisors (737214).

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

526530 is a wasteful number, since it uses less digits than its factorization.

526530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 526530 is about 725.6238695082. The cubic root of 526530 is about 80.7497228310.

The spelling of 526530 in words is "five hundred twenty-six thousand, five hundred thirty".