525305 has 8 divisors (see below), whose sum is σ = 687744. Its totient is φ = 382000.

The previous prime is 525299. The next prime is 525313. The reversal of 525305 is 503525.

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

It is not a de Polignac number, because 525305 - 2⁶ = 525241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4721 + ... + 4830.

It is an arithmetic number, because the mean of its divisors is an integer number (85968).

2⁵²⁵³⁰⁵ is an apocalyptic number.

525305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525305 is a deficient number, since it is larger than the sum of its proper divisors (162439).

525305 is a wasteful number, since it uses less digits than its factorization.

525305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9567.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 525305 is about 724.7792767457. The cubic root of 525305 is about 80.6870513639.

The spelling of 525305 in words is "five hundred twenty-five thousand, three hundred five".