8205530 has 24 divisors (see below), whose sum is σ = 15595092. Its totient is φ = 3108096.

The previous prime is 8205529. The next prime is 8205553. The reversal of 8205530 is 355028.

It can be written as a sum of positive squares in 2 ways, for example, as 8014561 + 190969 = 2831^2 + 437^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8205496 and 8205505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2474 + ... + 4746.

Almost surely, 2^8205530 is an apocalyptic number.

8205530 is a deficient number, since it is larger than the sum of its proper divisors (7389562).

8205530 is a wasteful number, since it uses less digits than its factorization.

8205530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2299 counting only the distinct ones).

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

The square root of 8205530 is about 2864.5296297996. The cubic root of 8205530 is about 201.6982882667.

The spelling of 8205530 in words is "eight million, two hundred five thousand, five hundred thirty".