525930 has 32 divisors (see below), whose sum is σ = 1292544. Its totient is φ = 136896.

The previous prime is 525923. The next prime is 525937. The reversal of 525930 is 39525.

It is an interprime number because it is at equal distance from previous prime (525923) and next prime (525937).

It is a self number, because there is not a number n which added to its sum of digits gives 525930.

It is not an unprimeable number, because it can be changed into a prime (525937) by changing a digit.

525930 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 (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1224 + ... + 1596.

It is an arithmetic number, because the mean of its divisors is an integer number (40392).

2⁵²⁵⁹³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646272).

525930 is an abundant number, since it is smaller than the sum of its proper divisors (766614).

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

525930 is a wasteful number, since it uses less digits than its factorization.

525930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 525930 is about 725.2103143227. The cubic root of 525930 is about 80.7190387618.

The spelling of 525930 in words is "five hundred twenty-five thousand, nine hundred thirty".