525324409 has 8 divisors (see below), whose sum is σ = 539827848. Its totient is φ = 510837120.

The previous prime is 525324403. The next prime is 525324413. The reversal of 525324409 is 904423525.

It can be written as a sum of positive squares in 4 ways, for example, as 142730809 + 382593600 = 11947^2 + 19560^2 .

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 525324409 - 2⁷ = 525324281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525324403) 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, 94269 + ... + 99685.

It is an arithmetic number, because the mean of its divisors is an integer number (67478481).

Almost surely, 2^525324409 is an apocalyptic number.

It is an amenable number.

525324409 is a deficient number, since it is larger than the sum of its proper divisors (14503439).

525324409 is a wasteful number, since it uses less digits than its factorization.

525324409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8075.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 525324409 is about 22919.9565662765. The cubic root of 525324409 is about 806.8804509493.

The spelling of 525324409 in words is "five hundred twenty-five million, three hundred twenty-four thousand, four hundred nine".