205525241 has 2 divisors, whose sum is σ = 205525242. Its totient is φ = 205525240.

The previous prime is 205525231. The next prime is 205525253. The reversal of 205525241 is 142525502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169104016 + 36421225 = 13004^2 + 6035^2 .

It is a cyclic number.

It is not a de Polignac number, because 205525241 - 2¹⁰ = 205524217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205525241.

It is not a weakly prime, because it can be changed into another prime (205525231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102762620 + 102762621.

It is an arithmetic number, because the mean of its divisors is an integer number (102762621).

Almost surely, 2^205525241 is an apocalyptic number.

It is an amenable number.

205525241 is a deficient number, since it is larger than the sum of its proper divisors (1).

205525241 is an equidigital number, since it uses as much as digits as its factorization.

205525241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 205525241 is about 14336.1515407727. The cubic root of 205525241 is about 590.1400041207.

The spelling of 205525241 in words is "two hundred five million, five hundred twenty-five thousand, two hundred forty-one".