205528392551 has 2 divisors, whose sum is σ = 205528392552. Its totient is φ = 205528392550.

The previous prime is 205528392539. The next prime is 205528392613. The reversal of 205528392551 is 155293825502.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205528392551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205528392496 and 205528392505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205528392151) 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 as a sum of consecutive naturals, namely, 102764196275 + 102764196276.

It is an arithmetic number, because the mean of its divisors is an integer number (102764196276).

Almost surely, 2^205528392551 is an apocalyptic number.

205528392551 is a deficient number, since it is larger than the sum of its proper divisors (1).

205528392551 is an equidigital number, since it uses as much as digits as its factorization.

205528392551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080000, while the sum is 47.

The spelling of 205528392551 in words is "two hundred five billion, five hundred twenty-eight million, three hundred ninety-two thousand, five hundred fifty-one".