525830 has 8 divisors (see below), whose sum is σ = 946512. Its totient is φ = 210328.

The previous prime is 525817. The next prime is 525839. The reversal of 525830 is 38525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 525796 and 525805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525839) by changing a digit.

525830 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 3 ways as a sum of consecutive naturals, for example, 26282 + ... + 26301.

It is an arithmetic number, because the mean of its divisors is an integer number (118314).

2⁵²⁵⁸³⁰ is an apocalyptic number.

525830 is a deficient number, since it is larger than the sum of its proper divisors (420682).

525830 is a wasteful number, since it uses less digits than its factorization.

525830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52590.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 525830 is about 725.1413655281. The cubic root of 525830 is about 80.7139224818.

The spelling of 525830 in words is "five hundred twenty-five thousand, eight hundred thirty".