205528313 has 2 divisors, whose sum is σ = 205528314. Its totient is φ = 205528312.

The previous prime is 205528273. The next prime is 205528373. The reversal of 205528313 is 313825502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188156089 + 17372224 = 13717^2 + 4168^2 .

It is a cyclic number.

It is not a de Polignac number, because 205528313 - 2¹² = 205524217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (205528373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102764156 + 102764157.

It is an arithmetic number, because the mean of its divisors is an integer number (102764157).

Almost surely, 2^205528313 is an apocalyptic number.

It is an amenable number.

205528313 is a deficient number, since it is larger than the sum of its proper divisors (1).

205528313 is an equidigital number, since it uses as much as digits as its factorization.

205528313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 205528313 is about 14336.2586820969. The cubic root of 205528313 is about 590.1429443938.

The spelling of 205528313 in words is "two hundred five million, five hundred twenty-eight thousand, three hundred thirteen".