205530522535 has 32 divisors (see below), whose sum is σ = 268750198080. Its totient is φ = 149988215808.

The previous prime is 205530522497. The next prime is 205530522539. The reversal of 205530522535 is 535225035502.

It is a cyclic number.

It is not a de Polignac number, because 205530522535 - 2¹¹ = 205530520487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205530522494 and 205530522503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205530522539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2808469 + ... + 2880721.

It is an arithmetic number, because the mean of its divisors is an integer number (8398443690).

Almost surely, 2^205530522535 is an apocalyptic number.

205530522535 is a deficient number, since it is larger than the sum of its proper divisors (63219675545).

205530522535 is a wasteful number, since it uses less digits than its factorization.

205530522535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72787.

The product of its (nonzero) digits is 225000, while the sum is 37.

The spelling of 205530522535 in words is "two hundred five billion, five hundred thirty million, five hundred twenty-two thousand, five hundred thirty-five".