205795530 has 24 divisors (see below), whose sum is σ = 535068612. Its totient is φ = 54878784.

The previous prime is 205795529. The next prime is 205795537. The reversal of 205795530 is 35597502.

205795530 is a `hidden beast` number, since 2 + 0 + 579 + 55 + 30 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 203832729 + 1962801 = 14277^2 + 1401^2 .

It is not an unprimeable number, because it can be changed into a prime (205795537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1143219 + ... + 1143398.

Almost surely, 2^205795530 is an apocalyptic number.

205795530 is an abundant number, since it is smaller than the sum of its proper divisors (329273082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205795530 is a wasteful number, since it uses less digits than its factorization.

205795530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2286630 (or 2286627 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

The square root of 205795530 is about 14345.5752760215. The cubic root of 205795530 is about 590.3985911406.

The spelling of 205795530 in words is "two hundred five million, seven hundred ninety-five thousand, five hundred thirty".