525800009 has 8 divisors (see below), whose sum is σ = 601054080. Its totient is φ = 450580896.

The previous prime is 525800003. The next prime is 525800017. The reversal of 525800009 is 900008525.

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

It is a cyclic number.

It is not a de Polignac number, because 525800009 - 2⁴ = 525799993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525800003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48557 + ... + 58389.

It is an arithmetic number, because the mean of its divisors is an integer number (75131760).

Almost surely, 2^525800009 is an apocalyptic number.

It is an amenable number.

525800009 is a deficient number, since it is larger than the sum of its proper divisors (75254071).

525800009 is an equidigital number, since it uses as much as digits as its factorization.

525800009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17479.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 525800009 is about 22930.3294568569. The cubic root of 525800009 is about 807.1238793177.

The spelling of 525800009 in words is "five hundred twenty-five million, eight hundred thousand, nine".