525430 has 8 divisors (see below), whose sum is σ = 945792. Its totient is φ = 210168.

The previous prime is 525409. The next prime is 525431. The reversal of 525430 is 34525.

It is a happy number.

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

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 = 525398 and 525407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26262 + ... + 26281.

It is an arithmetic number, because the mean of its divisors is an integer number (118224).

2⁵²⁵⁴³⁰ is an apocalyptic number.

525430 is a deficient number, since it is larger than the sum of its proper divisors (420362).

525430 is a wasteful number, since it uses less digits than its factorization.

525430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52550.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 525430 is about 724.8655047662. The cubic root of 525430 is about 80.6934508724.

Adding to 525430 its reverse (34525), we get a palindrome (559955).

The spelling of 525430 in words is "five hundred twenty-five thousand, four hundred thirty".